UPDATE: Add raw API to nodejs bindings

Update npm.yml
FIX: Try a boolean argument for the CI instead
2025-01-28 20:26:39 +01:00 · 2025-01-28 08:09:17 +01:00 · 2025-01-28 08:09:17 +01:00 · 2025-01-28 01:11:46 +01:00 · 2025-01-26 19:00:00 +01:00 · 2025-01-26 11:01:42 +01:00
275 changed files with 22634 additions and 3658 deletions
--- a/.github/workflows/npm.yml
+++ b/.github/workflows/npm.yml
@@ -0,0 +1,446 @@
+name: nodejs
+env:
+  DEBUG: napi:*
+  APP_NAME: nodejs
+  MACOSX_DEPLOYMENT_TARGET: '10.13'
+permissions:
+  contents: write
+  id-token: write
+'on':
+  workflow_dispatch:
+    inputs:
+      publish:
+        description: "Publish to npm"
+        required: true
+        type: boolean
+defaults:
+  run:
+    working-directory: ./bindings/nodejs
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        settings:
+          - host: macos-latest
+            target: x86_64-apple-darwin
+            build: yarn build --target x86_64-apple-darwin
+          - host: windows-latest
+            build: yarn build --target x86_64-pc-windows-msvc
+            target: x86_64-pc-windows-msvc
+          - host: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            docker: ghcr.io/napi-rs/napi-rs/nodejs-rust:lts-debian
+            build: yarn build --target x86_64-unknown-linux-gnu
+          - host: ubuntu-latest
+            target: x86_64-unknown-linux-musl
+            docker: ghcr.io/napi-rs/napi-rs/nodejs-rust:lts-alpine
+            build: yarn build --target x86_64-unknown-linux-musl
+          - host: macos-latest
+            target: aarch64-apple-darwin
+            build: yarn build --target aarch64-apple-darwin
+          - host: ubuntu-latest
+            target: aarch64-unknown-linux-gnu
+            docker: ghcr.io/napi-rs/napi-rs/nodejs-rust:lts-debian-aarch64
+            build: yarn build --target aarch64-unknown-linux-gnu
+          - host: ubuntu-latest
+            target: armv7-unknown-linux-gnueabihf
+            setup: |
+              sudo apt-get update
+              sudo apt-get install gcc-arm-linux-gnueabihf -y
+            build: yarn build --target armv7-unknown-linux-gnueabihf
+          - host: ubuntu-latest
+            target: armv7-unknown-linux-musleabihf
+            build: yarn build --target armv7-unknown-linux-musleabihf
+          - host: ubuntu-latest
+            target: aarch64-linux-android
+            build: yarn build --target aarch64-linux-android
+          - host: ubuntu-latest
+            target: armv7-linux-androideabi
+            build: yarn build --target armv7-linux-androideabi
+          - host: ubuntu-latest
+            target: aarch64-unknown-linux-musl
+            docker: ghcr.io/napi-rs/napi-rs/nodejs-rust:lts-alpine
+            build: |-
+              set -e &&
+              rustup target add aarch64-unknown-linux-musl &&
+              yarn build --target aarch64-unknown-linux-musl
+          - host: windows-latest
+            target: aarch64-pc-windows-msvc
+            build: yarn build --target aarch64-pc-windows-msvc
+          - host: ubuntu-latest
+            target: riscv64gc-unknown-linux-gnu
+            setup: |
+              sudo apt-get update
+              sudo apt-get install gcc-riscv64-linux-gnu -y
+            build: yarn build --target riscv64gc-unknown-linux-gnu
+    name: stable - ${{ matrix.settings.target }} - node@20
+    runs-on: ${{ matrix.settings.host }}
+    defaults:
+      run:
+        working-directory: ./bindings/nodejs
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        if: ${{ !matrix.settings.docker }}
+        with:
+          node-version: 20
+          cache: yarn
+          cache-dependency-path: "bindings/nodejs"
+      - name: Install
+        uses: dtolnay/rust-toolchain@stable
+        if: ${{ !matrix.settings.docker }}
+        with:
+          toolchain: stable
+          targets: ${{ matrix.settings.target }}
+      - name: Cache cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            .cargo-cache
+            target/
+          key: ${{ matrix.settings.target }}-cargo-${{ matrix.settings.host }}
+      - uses: goto-bus-stop/setup-zig@v2
+        if: ${{ matrix.settings.target == 'armv7-unknown-linux-gnueabihf' || matrix.settings.target == 'armv7-unknown-linux-musleabihf' }}
+        with:
+          version: 0.13.0
+      - name: Setup toolchain
+        run: ${{ matrix.settings.setup }}
+        if: ${{ matrix.settings.setup }}
+        shell: bash
+      - name: Install dependencies
+        run: yarn install
+      - name: Build in docker
+        uses: addnab/docker-run-action@v3
+        if: ${{ matrix.settings.docker }}
+        with:
+          image: ${{ matrix.settings.docker }}
+          options: '--user 0:0 -v ${{ github.workspace }}/.cargo-cache/git/db:/usr/local/cargo/git/db -v ${{ github.workspace }}/.cargo/registry/cache:/usr/local/cargo/registry/cache -v ${{ github.workspace }}/.cargo/registry/index:/usr/local/cargo/registry/index -v ${{ github.workspace }}:/build -w /build/bindings/nodejs'
+          run: ${{ matrix.settings.build }}
+      - name: Build
+        run: ${{ matrix.settings.build }}
+        if: ${{ !matrix.settings.docker }}
+        shell: bash
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: bindings-${{ matrix.settings.target }}
+          path: bindings/nodejs/${{ env.APP_NAME }}.*.node
+          if-no-files-found: error
+  test-macOS-windows-binding:
+    name: Test bindings on ${{ matrix.settings.target }} - node@${{ matrix.node }}
+    needs:
+      - build
+    strategy:
+      fail-fast: false
+      matrix:
+        settings:
+          - host: macos-latest
+            target: x86_64-apple-darwin
+          - host: windows-latest
+            target: x86_64-pc-windows-msvc
+        node:
+          - '18'
+          - '20'
+    runs-on: ${{ matrix.settings.host }}
+    defaults:
+      run:
+        working-directory: ./bindings/nodejs
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node }}
+          cache: yarn
+          cache-dependency-path: "bindings/nodejs"
+          architecture: x64
+      - name: Install dependencies
+        run: yarn install
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: bindings-${{ matrix.settings.target }}
+          path: bindings/nodejs/
+      - name: List packages
+        run: ls -R .
+        shell: bash
+      - name: Test bindings
+        run: yarn test
+  test-linux-x64-gnu-binding:
+    name: Test bindings on Linux-x64-gnu - node@${{ matrix.node }}
+    needs:
+      - build
+    strategy:
+      fail-fast: false
+      matrix:
+        node:
+          - '18'
+          - '20'
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./bindings/nodejs
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node }}
+          cache: yarn
+          cache-dependency-path: "bindings/nodejs"
+      - name: Install dependencies
+        run: yarn install
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: bindings-x86_64-unknown-linux-gnu
+          path: bindings/nodejs/
+      - name: List packages
+        run: ls -R .
+        shell: bash
+      - name: Test bindings
+        run: docker run --rm -v $(pwd):/build -w /build/bindings/nodejs node:${{ matrix.node }}-slim yarn test
+  test-linux-x64-musl-binding:
+    name: Test bindings on x86_64-unknown-linux-musl - node@${{ matrix.node }}
+    needs:
+      - build
+    strategy:
+      fail-fast: false
+      matrix:
+        node:
+          - '18'
+          - '20'
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./bindings/nodejs
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node }}
+          cache: yarn
+          cache-dependency-path: "bindings/nodejs"
+      - name: Install dependencies
+        run: |
+          yarn config set supportedArchitectures.libc "musl"
+          yarn install
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: bindings-x86_64-unknown-linux-musl
+          path: bindings/nodejs/
+      - name: List packages
+        run: ls -R .
+        shell: bash
+      - name: Test bindings
+        run: docker run --rm -v $(pwd):/build -w /build/bindings/nodejs node:${{ matrix.node }}-alpine yarn test
+  test-linux-aarch64-gnu-binding:
+    name: Test bindings on aarch64-unknown-linux-gnu - node@${{ matrix.node }}
+    needs:
+      - build
+    strategy:
+      fail-fast: false
+      matrix:
+        node:
+          - '18'
+          - '20'
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./bindings/nodejs
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: bindings-aarch64-unknown-linux-gnu
+          path: bindings/nodejs/
+      - name: List packages
+        run: ls -R .
+        shell: bash
+      - name: Install dependencies
+        run: |
+          yarn config set supportedArchitectures.cpu "arm64"
+          yarn config set supportedArchitectures.libc "glibc"
+          yarn install
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+      - run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+      - name: Setup and run tests
+        uses: addnab/docker-run-action@v3
+        with:
+          image: node:${{ matrix.node }}-slim
+          options: '--platform linux/arm64 -v ${{ github.workspace }}:/build -w /build/bindings/nodejs'
+          run: |
+            set -e
+            yarn test
+            ls -la
+  test-linux-aarch64-musl-binding:
+    name: Test bindings on aarch64-unknown-linux-musl - node@${{ matrix.node }}
+    needs:
+      - build
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./bindings/nodejs
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: bindings-aarch64-unknown-linux-musl
+          path: bindings/nodejs/
+      - name: List packages
+        run: ls -R .
+        shell: bash
+      - name: Install dependencies
+        run: |
+          yarn config set supportedArchitectures.cpu "arm64"
+          yarn config set supportedArchitectures.libc "musl"
+          yarn install
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+      - run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+      - name: Setup and run tests
+        uses: addnab/docker-run-action@v3
+        with:
+          image: node:lts-alpine
+          options: '--platform linux/arm64 -v ${{ github.workspace }}:/build -w /build/bindings/nodejs'
+          run: |
+            set -e
+            yarn test
+  test-linux-arm-gnueabihf-binding:
+    name: Test bindings on armv7-unknown-linux-gnueabihf - node@${{ matrix.node }}
+    needs:
+      - build
+    strategy:
+      fail-fast: false
+      matrix:
+        node:
+          - '18'
+          - '20'
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./bindings/nodejs
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: bindings-armv7-unknown-linux-gnueabihf
+          path: bindings/nodejs/
+      - name: List packages
+        run: ls -R .
+        shell: bash
+      - name: Install dependencies
+        run: |
+          yarn config set supportedArchitectures.cpu "arm"
+          yarn install
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm
+      - run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+      - name: Setup and run tests
+        uses: addnab/docker-run-action@v3
+        with:
+          image: node:${{ matrix.node }}-bullseye-slim
+          options: '--platform linux/arm/v7 -v ${{ github.workspace }}:/build -w /build/bindings/nodejs'
+          run: |
+            set -e
+            yarn test
+            ls -la
+  universal-macOS:
+    name: Build universal macOS binary
+    needs:
+      - build
+    runs-on: macos-latest
+    defaults:
+      run:
+        working-directory: ./bindings/nodejs
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: yarn
+          cache-dependency-path: "bindings/nodejs"
+      - name: Install dependencies
+        run: yarn install
+      - name: Download macOS x64 artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: bindings-x86_64-apple-darwin
+          path: bindings/nodejs/artifacts
+      - name: Download macOS arm64 artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: bindings-aarch64-apple-darwin
+          path: bindings/nodejs/artifacts
+      - name: Combine binaries
+        run: yarn universal
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: bindings-universal-apple-darwin
+          path: bindings/nodejs/${{ env.APP_NAME }}.*.node
+          if-no-files-found: error
+  publish:
+    name: Publish
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./bindings/nodejs
+    needs:
+      - test-macOS-windows-binding
+      - test-linux-x64-gnu-binding
+      - test-linux-x64-musl-binding
+      - test-linux-aarch64-gnu-binding
+      - test-linux-aarch64-musl-binding
+      - test-linux-arm-gnueabihf-binding
+      - universal-macOS
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: yarn
+          cache-dependency-path: "bindings/nodejs"
+      - name: Install dependencies
+        run: yarn install
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: bindings/nodejs/artifacts
+      - name: Move artifacts
+        run: yarn artifacts
+      - name: List packages
+        run: ls -R ./npm
+        shell: bash
+      - name: Publish
+        run: |
+          echo "${{ github.event.inputs.publish }}"
+          if [ "${{ github.event.inputs.publish }}" = "true" ]; then
+            echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> ~/.npmrc
+            npm publish --access public
+            echo "Published to npm"
+          else
+            echo "Not a release, skipping publish"
+          fi
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
--- a/.github/workflows/test-coverage.yaml
+++ b/.github/workflows/test-coverage.yaml
@@ -17,8 +17,9 @@ jobs:
      - name: Generate code coverage
        run: cargo llvm-cov --all-features --workspace --exclude pyroncalc --exclude wasm --lcov --output-path lcov.info
      - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v5
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
          files: lcov.info
          fail_ci_if_error: true
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 target/*
-.DS_Store
+**/node_modules/**
+.DS_Store
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 - New function UNICODE ([#128](https://github.com/ironcalc/IronCalc/pull/128))
 - New document server (Thanks Dani!)
 - New function FORMULATEXT
+- Name Manager ([#212](https://github.com/ironcalc/IronCalc/pull/212) [#220](https://github.com/ironcalc/IronCalc/pull/220))

 ### Fixed

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -85,6 +85,12 @@ dependencies = [
 "syn",
 ]

+[[package]]
+name = "bitflags"
+version = "2.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f68f53c83ab957f72c32642f3868eec03eb974d1fb82e453128456482613d36"
+
 [[package]]
 name = "block-buffer"
 version = "0.10.4"
@@ -210,6 +216,15 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "245097e9a4535ee1e3e3931fcfcd55a796a44c643e8596ff6566d68f09b87bbc"

+[[package]]
+name = "convert_case"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec182b0ca2f35d8fc196cf3404988fd8b8c739a4d270ff118a398feb0cbec1ca"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "core-foundation-sys"
 version = "0.8.6"
@@ -271,6 +286,16 @@ dependencies = [
 "memchr",
 ]

+[[package]]
+name = "ctor"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a2785755761f3ddc1492979ce1e48d2c00d09311c39e4466429188f3dd6501"
+dependencies = [
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "deranged"
 version = "0.3.11"
@@ -389,7 +414,7 @@ dependencies = [

 [[package]]
 name = "ironcalc"
-version = "0.2.0"
+version = "0.3.0"
 dependencies = [
 "bitcode",
 "chrono",
@@ -405,7 +430,7 @@ dependencies = [

 [[package]]
 name = "ironcalc_base"
-version = "0.2.0"
+version = "0.3.0"
 dependencies = [
 "bitcode",
 "chrono",
@@ -421,6 +446,17 @@ dependencies = [
 "serde_json",
 ]

+[[package]]
+name = "ironcalc_nodejs"
+version = "0.3.1"
+dependencies = [
+ "ironcalc",
+ "napi",
+ "napi-build",
+ "napi-derive",
+ "serde",
+]
+
 [[package]]
 name = "itertools"
 version = "0.12.1"
@@ -460,6 +496,16 @@ version = "0.2.153"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"

+[[package]]
+name = "libloading"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc2f4eb4bc735547cfed7c0a4922cbd04a4655978c09b54f1f7b228750664c34"
+dependencies = [
+ "cfg-if",
+ "windows-targets",
+]
+
 [[package]]
 name = "log"
 version = "0.4.21"
@@ -490,6 +536,65 @@ dependencies = [
 "adler",
 ]

+[[package]]
+name = "napi"
+version = "2.16.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "214f07a80874bb96a8433b3cdfc84980d56c7b02e1a0d7ba4ba0db5cef785e2b"
+dependencies = [
+ "bitflags",
+ "ctor",
+ "napi-derive",
+ "napi-sys",
+ "once_cell",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "napi-build"
+version = "2.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db836caddef23662b94e16bf1f26c40eceb09d6aee5d5b06a7ac199320b69b19"
+
+[[package]]
+name = "napi-derive"
+version = "2.16.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7cbe2585d8ac223f7d34f13701434b9d5f4eb9c332cccce8dee57ea18ab8ab0c"
+dependencies = [
+ "cfg-if",
+ "convert_case",
+ "napi-derive-backend",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "napi-derive-backend"
+version = "1.0.75"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1639aaa9eeb76e91c6ae66da8ce3e89e921cd3885e99ec85f4abacae72fc91bf"
+dependencies = [
+ "convert_case",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "semver",
+ "syn",
+]
+
+[[package]]
+name = "napi-sys"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "427802e8ec3a734331fec1035594a210ce1ff4dc5bc1950530920ab717964ea3"
+dependencies = [
+ "libloading",
+]
+
 [[package]]
 name = "num-conv"
 version = "0.1.0"
@@ -616,9 +721,9 @@ dependencies = [

 [[package]]
 name = "pyo3"
-version = "0.22.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15ee168e30649f7f234c3d49ef5a7a6cbf5134289bc46c29ff3155fa3221c225"
+checksum = "57fe09249128b3173d092de9523eaa75136bf7ba85e0d69eca241c7939c933cc"
 dependencies = [
 "cfg-if",
 "indoc",
@@ -634,9 +739,9 @@ dependencies = [

 [[package]]
 name = "pyo3-build-config"
-version = "0.22.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e61cef80755fe9e46bb8a0b8f20752ca7676dcc07a5277d8b7768c6172e529b3"
+checksum = "1cd3927b5a78757a0d71aa9dff669f903b1eb64b54142a9bd9f757f8fde65fd7"
 dependencies = [
 "once_cell",
 "target-lexicon",
@@ -644,9 +749,9 @@ dependencies = [

 [[package]]
 name = "pyo3-ffi"
-version = "0.22.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67ce096073ec5405f5ee2b8b31f03a68e02aa10d5d4f565eca04acc41931fa1c"
+checksum = "dab6bb2102bd8f991e7749f130a70d05dd557613e39ed2deeee8e9ca0c4d548d"
 dependencies = [
 "libc",
 "pyo3-build-config",
@@ -654,9 +759,9 @@ dependencies = [

 [[package]]
 name = "pyo3-macros"
-version = "0.22.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2440c6d12bc8f3ae39f1e775266fa5122fd0c8891ce7520fa6048e683ad3de28"
+checksum = "91871864b353fd5ffcb3f91f2f703a22a9797c91b9ab497b1acac7b07ae509c7"
 dependencies = [
 "proc-macro2",
 "pyo3-macros-backend",
@@ -666,9 +771,9 @@ dependencies = [

 [[package]]
 name = "pyo3-macros-backend"
-version = "0.22.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1be962f0e06da8f8465729ea2cb71a416d2257dff56cbe40a70d3e62a93ae5d1"
+checksum = "43abc3b80bc20f3facd86cd3c60beed58c3e2aa26213f3cda368de39c60a27e4"
 dependencies = [
 "heck",
 "proc-macro2",
@@ -679,7 +784,7 @@ dependencies = [

 [[package]]
 name = "pyroncalc"
-version = "0.1.2"
+version = "0.3.0"
 dependencies = [
 "ironcalc",
 "pyo3",
@@ -779,6 +884,12 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"

+[[package]]
+name = "semver"
+version = "1.0.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f79dfe2d285b0488816f30e700a7438c5a73d816b5b7d3ac72fbc48b0d185e03"
+
 [[package]]
 name = "serde"
 version = "1.0.197"
@@ -923,6 +1034,12 @@ version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"

+[[package]]
+name = "unicode-segmentation"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6ccf251212114b54433ec949fd6a7841275f9ada20dddd2f29e9ceea4501493"
+
 [[package]]
 name = "unindent"
 version = "0.2.3"
@@ -953,7 +1070,7 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"

 [[package]]
 name = "wasm"
-version = "0.1.3"
+version = "0.3.0"
 dependencies = [
 "ironcalc_base",
 "serde",
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,10 +6,12 @@ members = [
  "xlsx",
  "bindings/wasm",
  "bindings/python",
+  "bindings/nodejs",
 ]

 exclude = [
  "generate_locale",
+  "webapp/app.ironcalc.com/server",
 ]

 [profile.release]
--- a/5
+++ b/5
@@ -2,7 +2,8 @@
 lint:
 	cargo fmt -- --check
 	cargo clippy --all-targets --all-features -- -W clippy::unwrap_used -W clippy::expect_used -W clippy::panic -D warnings
-	cd webapp && npm install && npm run check
+	cd webapp/IronCalc/ && npm install && npm run check
+	cd webapp/app.ironcalc.com/frontend/ && npm install && npm run check

 .PHONY: format
 format:
@@ -15,7 +16,7 @@ tests: lint
 	# Regretabbly we need to build the wasm twice, once for the nodejs tests
 	# and a second one for the vitest.
 	cd bindings/wasm/ && wasm-pack build --target nodejs && node tests/test.mjs && make
-	cd webapp && npm run test
+	cd webapp/IronCalc/ && npm run test
 	cd bindings/python && ./run_tests.sh && ./run_examples.sh

 .PHONY: remove-artifacts
--- a/base/Cargo.toml
+++ b/base/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "ironcalc_base"
-version = "0.2.0"
+version = "0.3.0"
 authors = ["Nicolás Hatcher <nicolas@theuniverse.today>"]
 edition = "2021"
 homepage = "https://www.ironcalc.com"
 repository = "https://github.com/ironcalc/ironcalc/"
-description = "The democratization of spreadsheets"
+description = "Open source spreadsheet engine"
 license = "MIT OR Apache-2.0"
 readme = "README.md"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
--- a/base/src/calc_result.rs
+++ b/base/src/calc_result.rs
@@ -2,6 +2,7 @@ use std::cmp::Ordering;

 use crate::expressions::{token::Error, types::CellReferenceIndex};

+#[derive(Clone)]
 pub struct Range {
    pub left: CellReferenceIndex,
    pub right: CellReferenceIndex,
--- a/base/src/constants.rs
+++ b/base/src/constants.rs
@@ -16,3 +16,10 @@ pub(crate) const LAST_ROW: i32 = 1_048_576;
 // NaiveDate::from_ymd(1900, 1, 1).num_days_from_ce() - 2
 // The 2 days offset is because of Excel 1900 bug
 pub(crate) const EXCEL_DATE_BASE: i32 = 693_594;
+
+// We do not support dates before 1899-12-31.
+pub(crate) const MINIMUM_DATE_SERIAL_NUMBER: i32 = 1;
+
+// Excel can handle dates until the year 9999-12-31
+// 2958465 is the number of days from 1900-01-01 to 9999-12-31
+pub(crate) const MAXIMUM_DATE_SERIAL_NUMBER: i32 = 2_958_465;
--- a/base/src/expressions/parser/mod.rs
+++ b/base/src/expressions/parser/mod.rs
@@ -164,7 +164,9 @@ pub enum Node {
        args: Vec<Node>,
    },
    ArrayKind(Vec<Node>),
-    VariableKind(String),
+    DefinedNameKind((String, Option<u32>)),
+    TableNameKind(String),
+    WrongVariableKind(String),
    CompareKind {
        kind: OpCompare,
        left: Box<Node>,
@@ -187,12 +189,17 @@ pub enum Node {
 pub struct Parser {
    lexer: lexer::Lexer,
    worksheets: Vec<String>,
-    context: Option<CellReferenceRC>,
+    defined_names: Vec<(String, Option<u32>)>,
+    context: CellReferenceRC,
    tables: HashMap<String, Table>,
 }

 impl Parser {
-    pub fn new(worksheets: Vec<String>, tables: HashMap<String, Table>) -> Parser {
+    pub fn new(
+        worksheets: Vec<String>,
+        defined_names: Vec<(String, Option<u32>)>,
+        tables: HashMap<String, Table>,
+    ) -> Parser {
        let lexer = lexer::Lexer::new(
            "",
            lexer::LexerMode::A1,
@@ -201,10 +208,16 @@ impl Parser {
            #[allow(clippy::expect_used)]
            get_language("en").expect(""),
        );
+        let context = CellReferenceRC {
+            sheet: worksheets.first().map_or("", |v| v).to_string(),
+            column: 1,
+            row: 1,
+        };
        Parser {
            lexer,
            worksheets,
-            context: None,
+            defined_names,
+            context,
            tables,
        }
    }
@@ -212,13 +225,18 @@ impl Parser {
        self.lexer.set_lexer_mode(mode)
    }

-    pub fn set_worksheets(&mut self, worksheets: Vec<String>) {
+    pub fn set_worksheets_and_names(
+        &mut self,
+        worksheets: Vec<String>,
+        defined_names: Vec<(String, Option<u32>)>,
+    ) {
        self.worksheets = worksheets;
+        self.defined_names = defined_names;
    }

-    pub fn parse(&mut self, formula: &str, context: &Option<CellReferenceRC>) -> Node {
+    pub fn parse(&mut self, formula: &str, context: &CellReferenceRC) -> Node {
        self.lexer.set_formula(formula);
-        self.context.clone_from(context);
+        self.context = context.clone();
        self.parse_expr()
    }

@@ -232,6 +250,24 @@ impl Parser {
        None
    }

+    // Returns:
+    //  * None: If there is no defined name by that name
+    //  * Some(Some(index)): If there is a defined name local to that sheet
+    //  * Some(None): If there is a global defined name
+    fn get_defined_name(&self, name: &str, sheet: u32) -> Option<Option<u32>> {
+        for (df_name, df_scope) in &self.defined_names {
+            if name.to_lowercase() == df_name.to_lowercase() && df_scope == &Some(sheet) {
+                return Some(*df_scope);
+            }
+        }
+        for (df_name, df_scope) in &self.defined_names {
+            if name.to_lowercase() == df_name.to_lowercase() && df_scope.is_none() {
+                return Some(None);
+            }
+        }
+        None
+    }
+
    fn parse_expr(&mut self) -> Node {
        let mut t = self.parse_concat();
        if let Node::ParseErrorKind { .. } = t {
@@ -446,16 +482,7 @@ impl Parser {
                absolute_column,
                absolute_row,
            } => {
-                let context = match &self.context {
-                    Some(c) => c,
-                    None => {
-                        return Node::ParseErrorKind {
-                            formula: self.lexer.get_formula(),
-                            position: self.lexer.get_position() as usize,
-                            message: "Expected context for the reference".to_string(),
-                        }
-                    }
-                };
+                let context = &self.context;
                let sheet_index = match &sheet {
                    Some(name) => self.get_sheet_index_by_name(name),
                    None => self.get_sheet_index_by_name(&context.sheet),
@@ -490,16 +517,7 @@ impl Parser {
                }
            }
            TokenType::Range { sheet, left, right } => {
-                let context = match &self.context {
-                    Some(c) => c,
-                    None => {
-                        return Node::ParseErrorKind {
-                            formula: self.lexer.get_formula(),
-                            position: self.lexer.get_position() as usize,
-                            message: "Expected context for the reference".to_string(),
-                        }
-                    }
-                };
+                let context = &self.context;
                let sheet_index = match &sheet {
                    Some(name) => self.get_sheet_index_by_name(name),
                    None => self.get_sheet_index_by_name(&context.sheet),
@@ -585,11 +603,33 @@ impl Parser {
                            kind: function_kind,
                            args,
                        };
-                    } else {
-                        return Node::InvalidFunctionKind { name, args };
+                    }
+                    return Node::InvalidFunctionKind { name, args };
+                }
+                let context = &self.context;
+
+                let context_sheet_index = match self.get_sheet_index_by_name(&context.sheet) {
+                    Some(i) => i,
+                    None => {
+                        return Node::ParseErrorKind {
+                            formula: self.lexer.get_formula(),
+                            position: 0,
+                            message: "sheet not found".to_string(),
+                        };
+                    }
+                };
+
+                // Could be a defined name or a table
+                if let Some(scope) = self.get_defined_name(&name, context_sheet_index) {
+                    return Node::DefinedNameKind((name, scope));
+                }
+                let name_lower = name.to_lowercase();
+                for table_name in self.tables.keys() {
+                    if table_name.to_lowercase() == name_lower {
+                        return Node::TableNameKind(name);
                    }
                }
-                Node::VariableKind(name)
+                Node::WrongVariableKind(name)
            }
            TokenType::Error(kind) => Node::ErrorKind(kind),
            TokenType::Illegal(error) => Node::ParseErrorKind {
@@ -602,7 +642,38 @@ impl Parser {
                position: 0,
                message: "Unexpected end of input.".to_string(),
            },
-            TokenType::Boolean(value) => Node::BooleanKind(value),
+            TokenType::Boolean(value) => {
+                // Could be a function call "TRUE()"
+                let next_token = self.lexer.peek_token();
+                if next_token == TokenType::LeftParenthesis {
+                    self.lexer.advance_token();
+                    // We parse all the arguments, although technically this is moot
+                    // But is has the upside of transforming `=TRUE( 4 )` into `=TRUE(4)`
+                    let args = match self.parse_function_args() {
+                        Ok(s) => s,
+                        Err(e) => return e,
+                    };
+                    if let Err(err) = self.lexer.expect(TokenType::RightParenthesis) {
+                        return Node::ParseErrorKind {
+                            formula: self.lexer.get_formula(),
+                            position: err.position,
+                            message: err.message,
+                        };
+                    }
+                    if value {
+                        return Node::FunctionKind {
+                            kind: Function::True,
+                            args,
+                        };
+                    } else {
+                        return Node::FunctionKind {
+                            kind: Function::False,
+                            args,
+                        };
+                    }
+                }
+                Node::BooleanKind(value)
+            }
            TokenType::Compare(_) => {
                // A primary Node cannot start with an operator
                Node::ParseErrorKind {
@@ -661,187 +732,177 @@ impl Parser {
                // We will try to convert to a normal reference
                // table_name[column_name] => cell1:cell2
                // table_name[[#This Row], [column_name]:[column_name]] => cell1:cell2
-                if let Some(context) = &self.context {
-                    let context_sheet_index = match self.get_sheet_index_by_name(&context.sheet) {
-                        Some(i) => i,
-                        None => {
-                            return Node::ParseErrorKind {
-                                formula: self.lexer.get_formula(),
-                                position: 0,
-                                message: "sheet not found".to_string(),
-                            };
-                        }
-                    };
-                    // table-name => table
-                    let table = match self.tables.get(&table_name) {
-                        Some(t) => t,
-                        None => {
-                            let message = format!(
-                                "Table not found: '{table_name}' at '{}!{}{}'",
-                                context.sheet,
-                                number_to_column(context.column)
-                                    .unwrap_or(format!("{}", context.column)),
-                                context.row
-                            );
-                            return Node::ParseErrorKind {
-                                formula: self.lexer.get_formula(),
-                                position: 0,
-                                message,
-                            };
-                        }
-                    };
-                    let table_sheet_index = match self.get_sheet_index_by_name(&table.sheet_name) {
-                        Some(i) => i,
-                        None => {
-                            return Node::ParseErrorKind {
-                                formula: self.lexer.get_formula(),
-                                position: 0,
-                                message: "sheet not found".to_string(),
-                            };
-                        }
-                    };
+                let context = &self.context;
+                let context_sheet_index = match self.get_sheet_index_by_name(&context.sheet) {
+                    Some(i) => i,
+                    None => {
+                        return Node::ParseErrorKind {
+                            formula: self.lexer.get_formula(),
+                            position: 0,
+                            message: "sheet not found".to_string(),
+                        };
+                    }
+                };
+                // table-name => table
+                let table = match self.tables.get(&table_name) {
+                    Some(t) => t,
+                    None => {
+                        let message = format!(
+                            "Table not found: '{table_name}' at '{}!{}{}'",
+                            context.sheet,
+                            number_to_column(context.column)
+                                .unwrap_or(format!("{}", context.column)),
+                            context.row
+                        );
+                        return Node::ParseErrorKind {
+                            formula: self.lexer.get_formula(),
+                            position: 0,
+                            message,
+                        };
+                    }
+                };
+                let table_sheet_index = match self.get_sheet_index_by_name(&table.sheet_name) {
+                    Some(i) => i,
+                    None => {
+                        return Node::ParseErrorKind {
+                            formula: self.lexer.get_formula(),
+                            position: 0,
+                            message: "sheet not found".to_string(),
+                        };
+                    }
+                };

-                    let sheet_name = if table_sheet_index == context_sheet_index {
-                        None
-                    } else {
-                        Some(table.sheet_name.clone())
-                    };
+                let sheet_name = if table_sheet_index == context_sheet_index {
+                    None
+                } else {
+                    Some(table.sheet_name.clone())
+                };

-                    // context must be with tables.reference
-                    #[allow(clippy::expect_used)]
-                    let (column_start, mut row_start, column_end, mut row_end) =
-                        parse_range(&table.reference).expect("Failed parsing range");
+                // context must be with tables.reference
+                #[allow(clippy::expect_used)]
+                let (column_start, mut row_start, column_end, mut row_end) =
+                    parse_range(&table.reference).expect("Failed parsing range");

-                    let totals_row_count = table.totals_row_count as i32;
-                    let header_row_count = table.header_row_count as i32;
-                    row_end -= totals_row_count;
+                let totals_row_count = table.totals_row_count as i32;
+                let header_row_count = table.header_row_count as i32;
+                row_end -= totals_row_count;

-                    match specifier {
-                        Some(token::TableSpecifier::ThisRow) => {
-                            row_start = context.row;
-                            row_end = context.row;
-                        }
-                        Some(token::TableSpecifier::Totals) => {
-                            if totals_row_count != 0 {
-                                row_start = row_end + 1;
-                                row_end = row_start;
-                            } else {
-                                // Table1[#Totals] is #REF! if Table1 does not have totals
-                                return Node::ErrorKind(token::Error::REF);
-                            }
-                        }
-                        Some(token::TableSpecifier::Headers) => {
+                match specifier {
+                    Some(token::TableSpecifier::ThisRow) => {
+                        row_start = context.row;
+                        row_end = context.row;
+                    }
+                    Some(token::TableSpecifier::Totals) => {
+                        if totals_row_count != 0 {
+                            row_start = row_end + 1;
                            row_end = row_start;
-                        }
-                        Some(token::TableSpecifier::Data) => {
-                            row_start += header_row_count;
-                        }
-                        Some(token::TableSpecifier::All) => {
-                            if totals_row_count != 0 {
-                                row_end += 1;
-                            }
-                        }
-                        None => {
-                            // skip the headers
-                            row_start += header_row_count;
+                        } else {
+                            // Table1[#Totals] is #REF! if Table1 does not have totals
+                            return Node::ErrorKind(token::Error::REF);
                        }
                    }
-                    match table_reference {
-                        None => {
-                            return Node::RangeKind {
-                                sheet_name,
-                                sheet_index: table_sheet_index,
-                                absolute_row1: true,
-                                absolute_column1: true,
-                                row1: row_start,
-                                column1: column_start,
-                                absolute_row2: true,
-                                absolute_column2: true,
-                                row2: row_end,
-                                column2: column_end,
-                            };
-                        }
-                        Some(TableReference::ColumnReference(s)) => {
-                            let column_index = match get_table_column_by_name(&s, table) {
-                                Some(s) => s + column_start,
-                                None => {
-                                    return Node::ParseErrorKind {
-                                        formula: self.lexer.get_formula(),
-                                        position: self.lexer.get_position() as usize,
-                                        message: format!(
-                                            "Expecting column: {s} in table {table_name}"
-                                        ),
-                                    };
-                                }
-                            };
-                            if row_start == row_end {
-                                return Node::ReferenceKind {
-                                    sheet_name,
-                                    sheet_index: table_sheet_index,
-                                    absolute_row: true,
-                                    absolute_column: true,
-                                    row: row_start,
-                                    column: column_index,
-                                };
-                            }
-                            return Node::RangeKind {
-                                sheet_name,
-                                sheet_index: table_sheet_index,
-                                absolute_row1: true,
-                                absolute_column1: true,
-                                row1: row_start,
-                                column1: column_index,
-                                absolute_row2: true,
-                                absolute_column2: true,
-                                row2: row_end,
-                                column2: column_index,
-                            };
-                        }
-                        Some(TableReference::RangeReference((left, right))) => {
-                            let left_column_index = match get_table_column_by_name(&left, table) {
-                                Some(f) => f + column_start,
-                                None => {
-                                    return Node::ParseErrorKind {
-                                        formula: self.lexer.get_formula(),
-                                        position: self.lexer.get_position() as usize,
-                                        message: format!(
-                                            "Expecting column: {left} in table {table_name}"
-                                        ),
-                                    };
-                                }
-                            };
-
-                            let right_column_index = match get_table_column_by_name(&right, table) {
-                                Some(f) => f + column_start,
-                                None => {
-                                    return Node::ParseErrorKind {
-                                        formula: self.lexer.get_formula(),
-                                        position: self.lexer.get_position() as usize,
-                                        message: format!(
-                                            "Expecting column: {right} in table {table_name}"
-                                        ),
-                                    };
-                                }
-                            };
-                            return Node::RangeKind {
-                                sheet_name,
-                                sheet_index: table_sheet_index,
-                                absolute_row1: true,
-                                absolute_column1: true,
-                                row1: row_start,
-                                column1: left_column_index,
-                                absolute_row2: true,
-                                absolute_column2: true,
-                                row2: row_end,
-                                column2: right_column_index,
-                            };
+                    Some(token::TableSpecifier::Headers) => {
+                        row_end = row_start;
+                    }
+                    Some(token::TableSpecifier::Data) => {
+                        row_start += header_row_count;
+                    }
+                    Some(token::TableSpecifier::All) => {
+                        if totals_row_count != 0 {
+                            row_end += 1;
                        }
                    }
+                    None => {
+                        // skip the headers
+                        row_start += header_row_count;
+                    }
                }
-                Node::ParseErrorKind {
-                    formula: self.lexer.get_formula(),
-                    position: 0,
-                    message: "Structured references not supported in R1C1 mode".to_string(),
+                match table_reference {
+                    None => Node::RangeKind {
+                        sheet_name,
+                        sheet_index: table_sheet_index,
+                        absolute_row1: true,
+                        absolute_column1: true,
+                        row1: row_start,
+                        column1: column_start,
+                        absolute_row2: true,
+                        absolute_column2: true,
+                        row2: row_end,
+                        column2: column_end,
+                    },
+                    Some(TableReference::ColumnReference(s)) => {
+                        let column_index = match get_table_column_by_name(&s, table) {
+                            Some(s) => s + column_start,
+                            None => {
+                                return Node::ParseErrorKind {
+                                    formula: self.lexer.get_formula(),
+                                    position: self.lexer.get_position() as usize,
+                                    message: format!("Expecting column: {s} in table {table_name}"),
+                                };
+                            }
+                        };
+                        if row_start == row_end {
+                            return Node::ReferenceKind {
+                                sheet_name,
+                                sheet_index: table_sheet_index,
+                                absolute_row: true,
+                                absolute_column: true,
+                                row: row_start,
+                                column: column_index,
+                            };
+                        }
+                        Node::RangeKind {
+                            sheet_name,
+                            sheet_index: table_sheet_index,
+                            absolute_row1: true,
+                            absolute_column1: true,
+                            row1: row_start,
+                            column1: column_index,
+                            absolute_row2: true,
+                            absolute_column2: true,
+                            row2: row_end,
+                            column2: column_index,
+                        }
+                    }
+                    Some(TableReference::RangeReference((left, right))) => {
+                        let left_column_index = match get_table_column_by_name(&left, table) {
+                            Some(f) => f + column_start,
+                            None => {
+                                return Node::ParseErrorKind {
+                                    formula: self.lexer.get_formula(),
+                                    position: self.lexer.get_position() as usize,
+                                    message: format!(
+                                        "Expecting column: {left} in table {table_name}"
+                                    ),
+                                };
+                            }
+                        };
+
+                        let right_column_index = match get_table_column_by_name(&right, table) {
+                            Some(f) => f + column_start,
+                            None => {
+                                return Node::ParseErrorKind {
+                                    formula: self.lexer.get_formula(),
+                                    position: self.lexer.get_position() as usize,
+                                    message: format!(
+                                        "Expecting column: {right} in table {table_name}"
+                                    ),
+                                };
+                            }
+                        };
+                        Node::RangeKind {
+                            sheet_name,
+                            sheet_index: table_sheet_index,
+                            absolute_row1: true,
+                            absolute_column1: true,
+                            row1: row_start,
+                            column1: left_column_index,
+                            absolute_row2: true,
+                            absolute_column2: true,
+                            row2: row_end,
+                            column2: right_column_index,
+                        }
+                    }
                }
            }
        }
--- a/base/src/expressions/parser/move_formula.rs
+++ b/base/src/expressions/parser/move_formula.rs
@@ -375,7 +375,9 @@ fn to_string_moved(node: &Node, move_context: &MoveContext) -> String {
            }
            format!("{{{}}}", arguments)
        }
-        VariableKind(value) => value.to_string(),
+        DefinedNameKind((name, _)) => name.to_string(),
+        TableNameKind(name) => name.to_string(),
+        WrongVariableKind(name) => name.to_string(),
        CompareKind { kind, left, right } => format!(
            "{}{}{}",
            to_string_moved(left, move_context),
--- a/base/src/expressions/parser/stringify.rs
+++ b/base/src/expressions/parser/stringify.rs
@@ -464,7 +464,9 @@ fn stringify(
                | ReferenceKind { .. }
                | RangeKind { .. }
                | WrongReferenceKind { .. }
-                | VariableKind(_)
+                | DefinedNameKind(_)
+                | TableNameKind(_)
+                | WrongVariableKind(_)
                | WrongRangeKind { .. } => {
                    stringify(left, context, displace_data, use_original_name)
                }
@@ -492,7 +494,9 @@ fn stringify(
                | ReferenceKind { .. }
                | RangeKind { .. }
                | WrongReferenceKind { .. }
-                | VariableKind(_)
+                | DefinedNameKind(_)
+                | TableNameKind(_)
+                | WrongVariableKind(_)
                | WrongRangeKind { .. } => {
                    stringify(right, context, displace_data, use_original_name)
                }
@@ -543,7 +547,9 @@ fn stringify(
            }
            format!("{{{}}}", arguments)
        }
-        VariableKind(value) => value.to_string(),
+        TableNameKind(value) => value.to_string(),
+        DefinedNameKind((name, _)) => name.to_string(),
+        WrongVariableKind(name) => name.to_string(),
        UnaryKind { kind, right } => match kind {
            OpUnary::Minus => {
                format!(
@@ -660,7 +666,90 @@ pub(crate) fn rename_sheet_in_node(node: &mut Node, sheet_index: u32, new_name:
        Node::ErrorKind(_) => {}
        Node::ParseErrorKind { .. } => {}
        Node::ArrayKind(_) => {}
-        Node::VariableKind(_) => {}
+        Node::DefinedNameKind(_) => {}
+        Node::TableNameKind(_) => {}
+        Node::WrongVariableKind(_) => {}
        Node::EmptyArgKind => {}
    }
 }
+
+pub(crate) fn rename_defined_name_in_node(
+    node: &mut Node,
+    name: &str,
+    scope: Option<u32>,
+    new_name: &str,
+) {
+    match node {
+        // Rename
+        Node::DefinedNameKind((n, s)) => {
+            if name.to_lowercase() == n.to_lowercase() && *s == scope {
+                *n = new_name.to_string();
+            }
+        }
+        // Go next level
+        Node::OpRangeKind { left, right } => {
+            rename_defined_name_in_node(left, name, scope, new_name);
+            rename_defined_name_in_node(right, name, scope, new_name);
+        }
+        Node::OpConcatenateKind { left, right } => {
+            rename_defined_name_in_node(left, name, scope, new_name);
+            rename_defined_name_in_node(right, name, scope, new_name);
+        }
+        Node::OpSumKind {
+            kind: _,
+            left,
+            right,
+        } => {
+            rename_defined_name_in_node(left, name, scope, new_name);
+            rename_defined_name_in_node(right, name, scope, new_name);
+        }
+        Node::OpProductKind {
+            kind: _,
+            left,
+            right,
+        } => {
+            rename_defined_name_in_node(left, name, scope, new_name);
+            rename_defined_name_in_node(right, name, scope, new_name);
+        }
+        Node::OpPowerKind { left, right } => {
+            rename_defined_name_in_node(left, name, scope, new_name);
+            rename_defined_name_in_node(right, name, scope, new_name);
+        }
+        Node::FunctionKind { kind: _, args } => {
+            for arg in args {
+                rename_defined_name_in_node(arg, name, scope, new_name);
+            }
+        }
+        Node::InvalidFunctionKind { name: _, args } => {
+            for arg in args {
+                rename_defined_name_in_node(arg, name, scope, new_name);
+            }
+        }
+        Node::CompareKind {
+            kind: _,
+            left,
+            right,
+        } => {
+            rename_defined_name_in_node(left, name, scope, new_name);
+            rename_defined_name_in_node(right, name, scope, new_name);
+        }
+        Node::UnaryKind { kind: _, right } => {
+            rename_defined_name_in_node(right, name, scope, new_name);
+        }
+
+        // Do nothing
+        Node::BooleanKind(_) => {}
+        Node::NumberKind(_) => {}
+        Node::StringKind(_) => {}
+        Node::ErrorKind(_) => {}
+        Node::ParseErrorKind { .. } => {}
+        Node::ArrayKind(_) => {}
+        Node::EmptyArgKind => {}
+        Node::ReferenceKind { .. } => {}
+        Node::RangeKind { .. } => {}
+        Node::WrongReferenceKind { .. } => {}
+        Node::WrongRangeKind { .. } => {}
+        Node::TableNameKind(_) => {}
+        Node::WrongVariableKind(_) => {}
+    }
+}
--- a/base/src/expressions/parser/tests/test_general.rs
+++ b/base/src/expressions/parser/tests/test_general.rs
@@ -17,7 +17,7 @@ struct Formula<'a> {
 #[test]
 fn test_parser_reference() {
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -25,14 +25,14 @@ fn test_parser_reference() {
        row: 1,
        column: 1,
    };
-    let t = parser.parse("A2", &Some(cell_reference));
+    let t = parser.parse("A2", &cell_reference);
    assert_eq!(to_rc_format(&t), "R[1]C[0]");
 }

 #[test]
 fn test_parser_absolute_column() {
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -40,14 +40,14 @@ fn test_parser_absolute_column() {
        row: 1,
        column: 1,
    };
-    let t = parser.parse("$A1", &Some(cell_reference));
+    let t = parser.parse("$A1", &cell_reference);
    assert_eq!(to_rc_format(&t), "R[0]C1");
 }

 #[test]
 fn test_parser_absolute_row_col() {
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -55,14 +55,14 @@ fn test_parser_absolute_row_col() {
        row: 1,
        column: 1,
    };
-    let t = parser.parse("$C$5", &Some(cell_reference));
+    let t = parser.parse("$C$5", &cell_reference);
    assert_eq!(to_rc_format(&t), "R5C3");
 }

 #[test]
 fn test_parser_absolute_row_col_1() {
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -70,14 +70,14 @@ fn test_parser_absolute_row_col_1() {
        row: 1,
        column: 1,
    };
-    let t = parser.parse("$A$1", &Some(cell_reference));
+    let t = parser.parse("$A$1", &cell_reference);
    assert_eq!(to_rc_format(&t), "R1C1");
 }

 #[test]
 fn test_parser_simple_formula() {
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -86,14 +86,14 @@ fn test_parser_simple_formula() {
        column: 1,
    };

-    let t = parser.parse("C3+Sheet2!D4", &Some(cell_reference));
+    let t = parser.parse("C3+Sheet2!D4", &cell_reference);
    assert_eq!(to_rc_format(&t), "R[2]C[2]+Sheet2!R[3]C[3]");
 }

 #[test]
 fn test_parser_boolean() {
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -102,14 +102,14 @@ fn test_parser_boolean() {
        column: 1,
    };

-    let t = parser.parse("true", &Some(cell_reference));
+    let t = parser.parse("true", &cell_reference);
    assert_eq!(to_rc_format(&t), "TRUE");
 }

 #[test]
 fn test_parser_bad_formula() {
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -117,7 +117,7 @@ fn test_parser_bad_formula() {
        row: 1,
        column: 1,
    };
-    let t = parser.parse("#Value", &Some(cell_reference));
+    let t = parser.parse("#Value", &cell_reference);
    match &t {
        Node::ParseErrorKind {
            formula,
@@ -138,7 +138,7 @@ fn test_parser_bad_formula() {
 #[test]
 fn test_parser_bad_formula_1() {
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -146,7 +146,7 @@ fn test_parser_bad_formula_1() {
        row: 1,
        column: 1,
    };
-    let t = parser.parse("<5", &Some(cell_reference));
+    let t = parser.parse("<5", &cell_reference);
    match &t {
        Node::ParseErrorKind {
            formula,
@@ -167,7 +167,7 @@ fn test_parser_bad_formula_1() {
 #[test]
 fn test_parser_bad_formula_2() {
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -175,7 +175,7 @@ fn test_parser_bad_formula_2() {
        row: 1,
        column: 1,
    };
-    let t = parser.parse("*5", &Some(cell_reference));
+    let t = parser.parse("*5", &cell_reference);
    match &t {
        Node::ParseErrorKind {
            formula,
@@ -196,7 +196,7 @@ fn test_parser_bad_formula_2() {
 #[test]
 fn test_parser_bad_formula_3() {
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -204,7 +204,7 @@ fn test_parser_bad_formula_3() {
        row: 1,
        column: 1,
    };
-    let t = parser.parse("SUM(#VALVE!)", &Some(cell_reference));
+    let t = parser.parse("SUM(#VALVE!)", &cell_reference);
    match &t {
        Node::ParseErrorKind {
            formula,
@@ -225,7 +225,7 @@ fn test_parser_bad_formula_3() {
 #[test]
 fn test_parser_formulas() {
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    let formulas = vec![
        Formula {
@@ -259,11 +259,11 @@ fn test_parser_formulas() {
    for formula in formulas {
        let t = parser.parse(
            formula.initial,
-            &Some(CellReferenceRC {
+            &CellReferenceRC {
                sheet: "Sheet1".to_string(),
                row: 1,
                column: 1,
-            }),
+            },
        );
        assert_eq!(to_rc_format(&t), formula.expected);
        assert_eq!(to_string(&t, &cell_reference), formula.initial);
@@ -273,7 +273,7 @@ fn test_parser_formulas() {
 #[test]
 fn test_parser_r1c1_formulas() {
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());
    parser.set_lexer_mode(LexerMode::R1C1);

    let formulas = vec![
@@ -324,11 +324,11 @@ fn test_parser_r1c1_formulas() {
    for formula in formulas {
        let t = parser.parse(
            formula.initial,
-            &Some(CellReferenceRC {
+            &CellReferenceRC {
                sheet: "Sheet1".to_string(),
                row: 1,
                column: 1,
-            }),
+            },
        );
        assert_eq!(to_string(&t, &cell_reference), formula.expected);
        assert_eq!(to_rc_format(&t), formula.initial);
@@ -338,7 +338,7 @@ fn test_parser_r1c1_formulas() {
 #[test]
 fn test_parser_quotes() {
    let worksheets = vec!["Sheet1".to_string(), "Second Sheet".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -347,14 +347,14 @@ fn test_parser_quotes() {
        column: 1,
    };

-    let t = parser.parse("C3+'Second Sheet'!D4", &Some(cell_reference));
+    let t = parser.parse("C3+'Second Sheet'!D4", &cell_reference);
    assert_eq!(to_rc_format(&t), "R[2]C[2]+'Second Sheet'!R[3]C[3]");
 }

 #[test]
 fn test_parser_escape_quotes() {
    let worksheets = vec!["Sheet1".to_string(), "Second '2' Sheet".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -363,14 +363,14 @@ fn test_parser_escape_quotes() {
        column: 1,
    };

-    let t = parser.parse("C3+'Second ''2'' Sheet'!D4", &Some(cell_reference));
+    let t = parser.parse("C3+'Second ''2'' Sheet'!D4", &cell_reference);
    assert_eq!(to_rc_format(&t), "R[2]C[2]+'Second ''2'' Sheet'!R[3]C[3]");
 }

 #[test]
 fn test_parser_parenthesis() {
    let worksheets = vec!["Sheet1".to_string(), "Second2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -379,14 +379,14 @@ fn test_parser_parenthesis() {
        column: 1,
    };

-    let t = parser.parse("(C3=\"Yes\")*5", &Some(cell_reference));
+    let t = parser.parse("(C3=\"Yes\")*5", &cell_reference);
    assert_eq!(to_rc_format(&t), "(R[2]C[2]=\"Yes\")*5");
 }

 #[test]
 fn test_parser_excel_xlfn() {
    let worksheets = vec!["Sheet1".to_string(), "Second2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -395,7 +395,7 @@ fn test_parser_excel_xlfn() {
        column: 1,
    };

-    let t = parser.parse("_xlfn.CONCAT(C3)", &Some(cell_reference));
+    let t = parser.parse("_xlfn.CONCAT(C3)", &cell_reference);
    assert_eq!(to_rc_format(&t), "CONCAT(R[2]C[2])");
 }

@@ -407,9 +407,9 @@ fn test_to_string_displaced() {
        column: 1,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

-    let node = parser.parse("C3", &Some(context.clone()));
+    let node = parser.parse("C3", context);
    let displace_data = DisplaceData::Column {
        sheet: 0,
        column: 1,
@@ -427,9 +427,9 @@ fn test_to_string_displaced_full_ranges() {
        column: 1,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

-    let node = parser.parse("SUM(3:3)", &Some(context.clone()));
+    let node = parser.parse("SUM(3:3)", context);
    let displace_data = DisplaceData::Column {
        sheet: 0,
        column: 1,
@@ -440,7 +440,7 @@ fn test_to_string_displaced_full_ranges() {
        "SUM(3:3)".to_string()
    );

-    let node = parser.parse("SUM(D:D)", &Some(context.clone()));
+    let node = parser.parse("SUM(D:D)", context);
    let displace_data = DisplaceData::Row {
        sheet: 0,
        row: 3,
@@ -460,9 +460,9 @@ fn test_to_string_displaced_too_low() {
        column: 1,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

-    let node = parser.parse("C3", &Some(context.clone()));
+    let node = parser.parse("C3", context);
    let displace_data = DisplaceData::Column {
        sheet: 0,
        column: 1,
@@ -480,9 +480,9 @@ fn test_to_string_displaced_too_high() {
        column: 1,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

-    let node = parser.parse("C3", &Some(context.clone()));
+    let node = parser.parse("C3", context);
    let displace_data = DisplaceData::Column {
        sheet: 0,
        column: 1,
--- a/base/src/expressions/parser/tests/test_issue_155.rs
+++ b/base/src/expressions/parser/tests/test_issue_155.rs
@@ -9,7 +9,7 @@ use crate::expressions::types::CellReferenceRC;
 #[test]
 fn issue_155_parser() {
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -17,14 +17,14 @@ fn issue_155_parser() {
        row: 2,
        column: 2,
    };
-    let t = parser.parse("A$1:A2", &Some(cell_reference.clone()));
+    let t = parser.parse("A$1:A2", &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "A$1:A2");
 }

 #[test]
 fn issue_155_parser_case_2() {
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -32,14 +32,14 @@ fn issue_155_parser_case_2() {
        row: 20,
        column: 20,
    };
-    let t = parser.parse("C$1:D2", &Some(cell_reference.clone()));
+    let t = parser.parse("C$1:D2", &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "C$1:D2");
 }

 #[test]
 fn issue_155_parser_only_row() {
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -48,14 +48,14 @@ fn issue_155_parser_only_row() {
        column: 20,
    };
    // This is tricky, I am not sure what to do in these cases
-    let t = parser.parse("A$2:B1", &Some(cell_reference.clone()));
+    let t = parser.parse("A$2:B1", &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "A1:B$2");
 }

 #[test]
 fn issue_155_parser_only_column() {
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -64,6 +64,6 @@ fn issue_155_parser_only_column() {
        column: 20,
    };
    // This is tricky, I am not sure what to do in these cases
-    let t = parser.parse("D1:$A3", &Some(cell_reference.clone()));
+    let t = parser.parse("D1:$A3", &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "$A1:D3");
 }
--- a/base/src/expressions/parser/tests/test_move_formula.rs
+++ b/base/src/expressions/parser/tests/test_move_formula.rs
@@ -15,7 +15,7 @@ fn test_move_formula() {
        column,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Area is C2:F6
    let area = &Area {
@@ -27,7 +27,7 @@ fn test_move_formula() {
    };

    // formula AB31 will not change
-    let node = parser.parse("AB31", &Some(context.clone()));
+    let node = parser.parse("AB31", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -43,7 +43,7 @@ fn test_move_formula() {
    assert_eq!(t, "AB31");

    // formula $AB$31 will not change
-    let node = parser.parse("AB31", &Some(context.clone()));
+    let node = parser.parse("AB31", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -59,7 +59,7 @@ fn test_move_formula() {
    assert_eq!(t, "AB31");

    // but formula D5 will change to N15  (N = D + 10)
-    let node = parser.parse("D5", &Some(context.clone()));
+    let node = parser.parse("D5", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -75,7 +75,7 @@ fn test_move_formula() {
    assert_eq!(t, "N15");

    // Also formula $D$5 will change to N15  (N = D + 10)
-    let node = parser.parse("$D$5", &Some(context.clone()));
+    let node = parser.parse("$D$5", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -102,7 +102,7 @@ fn test_move_formula_context_offset() {
        column,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Area is C2:F6
    let area = &Area {
@@ -113,7 +113,7 @@ fn test_move_formula_context_offset() {
        height: 5,
    };

-    let node = parser.parse("-X9+C2%", &Some(context.clone()));
+    let node = parser.parse("-X9+C2%", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -140,7 +140,7 @@ fn test_move_formula_area_limits() {
        column,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Area is C2:F6
    let area = &Area {
@@ -152,7 +152,7 @@ fn test_move_formula_area_limits() {
    };

    // Outside of the area. Not moved
-    let node = parser.parse("B2+B3+C1+G6+H5", &Some(context.clone()));
+    let node = parser.parse("B2+B3+C1+G6+H5", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -168,7 +168,7 @@ fn test_move_formula_area_limits() {
    assert_eq!(t, "B2+B3+C1+G6+H5");

    // In the area. Moved
-    let node = parser.parse("C2+F4+F5+F6", &Some(context.clone()));
+    let node = parser.parse("C2+F4+F5+F6", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -195,7 +195,7 @@ fn test_move_formula_ranges() {
        column,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    let area = &Area {
        sheet: 0,
@@ -205,7 +205,7 @@ fn test_move_formula_ranges() {
        height: 5,
    };
    // Ranges inside the area are fully displaced (absolute or not)
-    let node = parser.parse("SUM(C2:F5)", &Some(context.clone()));
+    let node = parser.parse("SUM(C2:F5)", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -220,7 +220,7 @@ fn test_move_formula_ranges() {
    );
    assert_eq!(t, "SUM(M12:P15)");

-    let node = parser.parse("SUM($C$2:$F$5)", &Some(context.clone()));
+    let node = parser.parse("SUM($C$2:$F$5)", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -236,7 +236,7 @@ fn test_move_formula_ranges() {
    assert_eq!(t, "SUM($M$12:$P$15)");

    // Ranges completely outside of the area are not touched
-    let node = parser.parse("SUM(A1:B3)", &Some(context.clone()));
+    let node = parser.parse("SUM(A1:B3)", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -251,7 +251,7 @@ fn test_move_formula_ranges() {
    );
    assert_eq!(t, "SUM(A1:B3)");

-    let node = parser.parse("SUM($A$1:$B$3)", &Some(context.clone()));
+    let node = parser.parse("SUM($A$1:$B$3)", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -267,7 +267,7 @@ fn test_move_formula_ranges() {
    assert_eq!(t, "SUM($A$1:$B$3)");

    // Ranges that overlap with the area are also NOT displaced
-    let node = parser.parse("SUM(A1:F5)", &Some(context.clone()));
+    let node = parser.parse("SUM(A1:F5)", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -283,7 +283,7 @@ fn test_move_formula_ranges() {
    assert_eq!(t, "SUM(A1:F5)");

    // Ranges that contain the area are also NOT displaced
-    let node = parser.parse("SUM(A1:X50)", &Some(context.clone()));
+    let node = parser.parse("SUM(A1:X50)", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -318,10 +318,10 @@ fn test_move_formula_wrong_reference() {
        height: 5,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Wrong formulas will NOT be displaced
-    let node = parser.parse("Sheet3!AB31", &Some(context.clone()));
+    let node = parser.parse("Sheet3!AB31", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -335,7 +335,7 @@ fn test_move_formula_wrong_reference() {
        },
    );
    assert_eq!(t, "Sheet3!AB31");
-    let node = parser.parse("Sheet3!$X$9", &Some(context.clone()));
+    let node = parser.parse("Sheet3!$X$9", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -350,7 +350,7 @@ fn test_move_formula_wrong_reference() {
    );
    assert_eq!(t, "Sheet3!$X$9");

-    let node = parser.parse("SUM(Sheet3!D2:D3)", &Some(context.clone()));
+    let node = parser.parse("SUM(Sheet3!D2:D3)", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -377,7 +377,7 @@ fn test_move_formula_misc() {
        column,
    };
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Area is C2:F6
    let area = &Area {
@@ -387,7 +387,7 @@ fn test_move_formula_misc() {
        width: 4,
        height: 5,
    };
-    let node = parser.parse("X9^C2-F4*H2", &Some(context.clone()));
+    let node = parser.parse("X9^C2-F4*H2", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -402,7 +402,7 @@ fn test_move_formula_misc() {
    );
    assert_eq!(t, "X9^M12-P14*H2");

-    let node = parser.parse("F5*(-D5)*SUM(A1, X9, $D$5)", &Some(context.clone()));
+    let node = parser.parse("F5*(-D5)*SUM(A1, X9, $D$5)", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -417,7 +417,7 @@ fn test_move_formula_misc() {
    );
    assert_eq!(t, "P15*(-N15)*SUM(A1,X9,$N$15)");

-    let node = parser.parse("IF(F5 < -D5, X9 & F5, FALSE)", &Some(context.clone()));
+    let node = parser.parse("IF(F5 < -D5, X9 & F5, FALSE)", context);
    let t = move_formula(
        &node,
        &MoveContext {
@@ -445,7 +445,7 @@ fn test_move_formula_another_sheet() {
    };
    // we add two sheets and we cut/paste from Sheet1 to Sheet2
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Area is C2:F6
    let area = &Area {
@@ -457,10 +457,7 @@ fn test_move_formula_another_sheet() {
    };

    // Formula AB31 and JJ3:JJ4 refers to original Sheet1!AB31 and Sheet1!JJ3:JJ4
-    let node = parser.parse(
-        "AB31*SUM(JJ3:JJ4)+SUM(Sheet2!C2:F6)*SUM(C2:F6)",
-        &Some(context.clone()),
-    );
+    let node = parser.parse("AB31*SUM(JJ3:JJ4)+SUM(Sheet2!C2:F6)*SUM(C2:F6)", context);
    let t = move_formula(
        &node,
        &MoveContext {
--- a/base/src/expressions/parser/tests/test_ranges.rs
+++ b/base/src/expressions/parser/tests/test_ranges.rs
@@ -14,7 +14,7 @@ struct Formula<'a> {
 #[test]
 fn test_parser_formulas_with_full_ranges() {
    let worksheets = vec!["Sheet1".to_string(), "Second Sheet".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    let formulas = vec![
        Formula {
@@ -52,11 +52,11 @@ fn test_parser_formulas_with_full_ranges() {
    for formula in &formulas {
        let t = parser.parse(
            formula.formula_a1,
-            &Some(CellReferenceRC {
+            &CellReferenceRC {
                sheet: "Sheet1".to_string(),
                row: 1,
                column: 1,
-            }),
+            },
        );
        assert_eq!(to_rc_format(&t), formula.formula_r1c1);
        assert_eq!(to_string(&t, &cell_reference), formula.formula_a1);
@@ -67,11 +67,11 @@ fn test_parser_formulas_with_full_ranges() {
    for formula in &formulas {
        let t = parser.parse(
            formula.formula_r1c1,
-            &Some(CellReferenceRC {
+            &CellReferenceRC {
                sheet: "Sheet1".to_string(),
                row: 1,
                column: 1,
-            }),
+            },
        );
        assert_eq!(to_rc_format(&t), formula.formula_r1c1);
        assert_eq!(to_string(&t, &cell_reference), formula.formula_a1);
@@ -81,7 +81,7 @@ fn test_parser_formulas_with_full_ranges() {
 #[test]
 fn test_range_inverse_order() {
    let worksheets = vec!["Sheet1".to_string(), "Sheet2".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -93,7 +93,7 @@ fn test_range_inverse_order() {
    // D4:C2 => C2:D4
    let t = parser.parse(
        "SUM(D4:C2)*SUM(Sheet2!D4:C20)*SUM($C$20:D4)",
-        &Some(cell_reference.clone()),
+        &cell_reference,
    );
    assert_eq!(
        to_string(&t, &cell_reference),
--- a/base/src/expressions/parser/tests/test_stringify.rs
+++ b/base/src/expressions/parser/tests/test_stringify.rs
@@ -9,7 +9,7 @@ use crate::expressions::types::CellReferenceRC;
 #[test]
 fn exp_order() {
    let worksheets = vec!["Sheet1".to_string()];
-    let mut parser = Parser::new(worksheets, HashMap::new());
+    let mut parser = Parser::new(worksheets, vec![], HashMap::new());

    // Reference cell is Sheet1!A1
    let cell_reference = CellReferenceRC {
@@ -17,18 +17,18 @@ fn exp_order() {
        row: 1,
        column: 1,
    };
-    let t = parser.parse("(1 + 2)^3  + 4", &Some(cell_reference.clone()));
+    let t = parser.parse("(1 + 2)^3  + 4", &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "(1+2)^3+4");

-    let t = parser.parse("(C5 + 3)^R4", &Some(cell_reference.clone()));
+    let t = parser.parse("(C5 + 3)^R4", &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "(C5+3)^R4");

-    let t = parser.parse("(C5 + 3)^(R4*6)", &Some(cell_reference.clone()));
+    let t = parser.parse("(C5 + 3)^(R4*6)", &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "(C5+3)^(R4*6)");

-    let t = parser.parse("(C5)^(R4)", &Some(cell_reference.clone()));
+    let t = parser.parse("(C5)^(R4)", &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "C5^R4");

-    let t = parser.parse("(5)^(4)", &Some(cell_reference.clone()));
+    let t = parser.parse("(5)^(4)", &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "5^4");
 }
--- a/base/src/expressions/parser/tests/test_tables.rs
+++ b/base/src/expressions/parser/tests/test_tables.rs
@@ -63,7 +63,7 @@ fn simple_table() {
    let row_count = 3;
    let tables = create_test_table("tblIncome", &column_names, "A1", row_count);

-    let mut parser = Parser::new(worksheets, tables);
+    let mut parser = Parser::new(worksheets, vec![], tables);
    // Reference cell is 'Sheet One'!F2
    let cell_reference = CellReferenceRC {
        sheet: "Sheet One".to_string(),
@@ -72,7 +72,7 @@ fn simple_table() {
    };

    let formula = "SUM(tblIncome[[#This Row],[Jan]:[Dec]])";
-    let t = parser.parse(formula, &Some(cell_reference.clone()));
+    let t = parser.parse(formula, &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "SUM($A$2:$E$2)");

    // Cell A3
@@ -82,7 +82,7 @@ fn simple_table() {
        column: 1,
    };
    let formula = "SUBTOTAL(109, tblIncome[Jan])";
-    let t = parser.parse(formula, &Some(cell_reference.clone()));
+    let t = parser.parse(formula, &cell_reference);
    assert_eq!(to_string(&t, &cell_reference), "SUBTOTAL(109,$A$2:$A$3)");

    // Cell A3 in 'Second Sheet'
@@ -92,7 +92,7 @@ fn simple_table() {
        column: 1,
    };
    let formula = "SUBTOTAL(109, tblIncome[Jan])";
-    let t = parser.parse(formula, &Some(cell_reference.clone()));
+    let t = parser.parse(formula, &cell_reference);
    assert_eq!(
        to_string(&t, &cell_reference),
        "SUBTOTAL(109,'Sheet One'!$A$2:$A$3)"
--- a/base/src/expressions/parser/walk.rs
+++ b/base/src/expressions/parser/walk.rs
@@ -263,7 +263,9 @@ pub(crate) fn forward_references(
        // TODO: Not implemented
        Node::ArrayKind(_) => {}
        // Do nothing. Note: we could do a blanket _ => {}
-        Node::VariableKind(_) => {}
+        Node::DefinedNameKind(_) => {}
+        Node::TableNameKind(_) => {}
+        Node::WrongVariableKind(_) => {}
        Node::ErrorKind(_) => {}
        Node::ParseErrorKind { .. } => {}
        Node::EmptyArgKind => {}
--- a/base/src/formatter/dates.rs
+++ b/base/src/formatter/dates.rs
@@ -1,18 +1,158 @@
 use chrono::Datelike;
+use chrono::Days;
 use chrono::Duration;
+use chrono::Months;
 use chrono::NaiveDate;

 use crate::constants::EXCEL_DATE_BASE;
+use crate::constants::MAXIMUM_DATE_SERIAL_NUMBER;
+use crate::constants::MINIMUM_DATE_SERIAL_NUMBER;

-pub fn from_excel_date(days: i64) -> NaiveDate {
+#[inline]
+fn convert_to_serial_number(date: NaiveDate) -> i32 {
+    date.num_days_from_ce() - EXCEL_DATE_BASE
+}
+
+fn is_date_within_range(date: NaiveDate) -> bool {
+    convert_to_serial_number(date) >= MINIMUM_DATE_SERIAL_NUMBER
+        && convert_to_serial_number(date) <= MAXIMUM_DATE_SERIAL_NUMBER
+}
+
+pub fn from_excel_date(days: i64) -> Result<NaiveDate, String> {
+    if days < MINIMUM_DATE_SERIAL_NUMBER as i64 {
+        return Err(format!(
+            "Excel date must be greater than {}",
+            MINIMUM_DATE_SERIAL_NUMBER
+        ));
+    };
+    if days > MAXIMUM_DATE_SERIAL_NUMBER as i64 {
+        return Err(format!(
+            "Excel date must be less than {}",
+            MAXIMUM_DATE_SERIAL_NUMBER
+        ));
+    };
    #[allow(clippy::expect_used)]
    let dt = NaiveDate::from_ymd_opt(1900, 1, 1).expect("problem with chrono::NaiveDate");
-    dt + Duration::days(days - 2)
+    Ok(dt + Duration::days(days - 2))
 }

 pub fn date_to_serial_number(day: u32, month: u32, year: i32) -> Result<i32, String> {
    match NaiveDate::from_ymd_opt(year, month, day) {
-        Some(native_date) => Ok(native_date.num_days_from_ce() - EXCEL_DATE_BASE),
+        Some(native_date) => Ok(convert_to_serial_number(native_date)),
        None => Err("Out of range parameters for date".to_string()),
    }
 }
+
+pub fn permissive_date_to_serial_number(day: i32, month: i32, year: i32) -> Result<i32, String> {
+    // Excel parses `DATE` very permissively. It allows not just for valid date values, but it
+    // allows for invalid dates as well. If you for example enter `DATE(1900, 1, 32)` it will
+    // return the date `1900-02-01`. Despite giving a day that is out of range it will just
+    // wrap the month and year around.
+    //
+    // This function applies that same logic to dates. And does it in the most compatible way as
+    // possible.
+
+    // Special case for the minimum date
+    if year == 1899 && month == 12 && day == 31 {
+        return Ok(MINIMUM_DATE_SERIAL_NUMBER);
+    }
+    let Some(mut date) = NaiveDate::from_ymd_opt(year, 1, 1) else {
+        return Err("Out of range parameters for date".to_string());
+    };
+
+    // One thing to note for example is that even if you started with a year out of range
+    // but tried to increment the months so that it wraps around into within range, excel
+    // would still return an error.
+    //
+    // I.E. DATE(0,13,-1) will return an error, despite it being equivalent to DATE(1,1,0) which
+    // is within range.
+    //
+    // As a result, we have to run range checks as we parse the date from the biggest unit to the
+    // smallest unit.
+    if !is_date_within_range(date) {
+        return Err("Out of range parameters for date".to_string());
+    }
+
+    date = {
+        let month_diff = month - 1;
+        let abs_month = month_diff.unsigned_abs();
+        if month_diff <= 0 {
+            date = date - Months::new(abs_month);
+        } else {
+            date = date + Months::new(abs_month);
+        }
+        if !is_date_within_range(date) {
+            return Err("Out of range parameters for date".to_string());
+        }
+        date
+    };
+
+    date = {
+        let day_diff = day - 1;
+        let abs_day = day_diff.unsigned_abs() as u64;
+        if day_diff <= 0 {
+            date = date - Days::new(abs_day);
+        } else {
+            date = date + Days::new(abs_day);
+        }
+        if !is_date_within_range(date) {
+            return Err("Out of range parameters for date".to_string());
+        }
+        date
+    };
+
+    Ok(convert_to_serial_number(date))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_permissive_date_to_serial_number() {
+        assert_eq!(
+            permissive_date_to_serial_number(42, 42, 2002),
+            date_to_serial_number(12, 7, 2005)
+        );
+        assert_eq!(
+            permissive_date_to_serial_number(1, 42, 2002),
+            date_to_serial_number(1, 6, 2005)
+        );
+        assert_eq!(
+            permissive_date_to_serial_number(1, 15, 2000),
+            date_to_serial_number(1, 3, 2001)
+        );
+        assert_eq!(
+            permissive_date_to_serial_number(1, 49, 2000),
+            date_to_serial_number(1, 1, 2004)
+        );
+        assert_eq!(
+            permissive_date_to_serial_number(1, 49, 2000),
+            date_to_serial_number(1, 1, 2004)
+        );
+        assert_eq!(
+            permissive_date_to_serial_number(31, 49, 2000),
+            date_to_serial_number(31, 1, 2004)
+        );
+        assert_eq!(
+            permissive_date_to_serial_number(256, 49, 2000),
+            date_to_serial_number(12, 9, 2004)
+        );
+        assert_eq!(
+            permissive_date_to_serial_number(256, 1, 2004),
+            date_to_serial_number(12, 9, 2004)
+        );
+    }
+
+    #[test]
+    fn test_max_and_min_dates() {
+        assert_eq!(
+            permissive_date_to_serial_number(31, 12, 9999),
+            Ok(MAXIMUM_DATE_SERIAL_NUMBER),
+        );
+        assert_eq!(
+            permissive_date_to_serial_number(31, 12, 1899),
+            Ok(MINIMUM_DATE_SERIAL_NUMBER),
+        );
+    }
+}
--- a/base/src/formatter/format.rs
+++ b/base/src/formatter/format.rs
@@ -154,15 +154,16 @@ pub fn format_number(value_original: f64, format: &str, locale: &Locale) -> Form
        ParsePart::Date(p) => {
            let tokens = &p.tokens;
            let mut text = "".to_string();
-            if !(1.0..=2_958_465.0).contains(&value) {
-                // 2_958_465 is 31 December 9999
-                return Formatted {
-                    text: "#VALUE!".to_owned(),
-                    color: None,
-                    error: Some("Date negative or too long".to_owned()),
-                };
-            }
-            let date = from_excel_date(value as i64);
+            let date = match from_excel_date(value as i64) {
+                Ok(d) => d,
+                Err(e) => {
+                    return Formatted {
+                        text: "#VALUE!".to_owned(),
+                        color: None,
+                        error: Some(e),
+                    }
+                }
+            };
            for token in tokens {
                match token {
                    TextToken::Literal(c) => {
--- a/base/src/functions/date_and_time.rs
+++ b/base/src/functions/date_and_time.rs
@@ -3,8 +3,11 @@ use chrono::Datelike;
 use chrono::Months;
 use chrono::Timelike;

+use crate::constants::MAXIMUM_DATE_SERIAL_NUMBER;
+use crate::constants::MINIMUM_DATE_SERIAL_NUMBER;
 use crate::expressions::types::CellReferenceIndex;
 use crate::formatter::dates::date_to_serial_number;
+use crate::formatter::dates::permissive_date_to_serial_number;
 use crate::model::get_milliseconds_since_epoch;
 use crate::{
    calc_result::CalcResult, constants::EXCEL_DATE_BASE, expressions::parser::Node,
@@ -18,20 +21,19 @@ impl Model {
            return CalcResult::new_args_number_error(cell);
        }
        let serial_number = match self.get_number(&args[0], cell) {
-            Ok(c) => {
-                let t = c.floor() as i64;
-                if t < 0 {
-                    return CalcResult::Error {
-                        error: Error::NUM,
-                        origin: cell,
-                        message: "Function DAY parameter 1 value is negative. It should be positive or zero.".to_string(),
-                    };
-                }
-                t
-            }
+            Ok(c) => c.floor() as i64,
            Err(s) => return s,
        };
-        let date = from_excel_date(serial_number);
+        let date = match from_excel_date(serial_number) {
+            Ok(date) => date,
+            Err(_) => {
+                return CalcResult::Error {
+                    error: Error::NUM,
+                    origin: cell,
+                    message: "Out of range parameters for date".to_string(),
+                }
+            }
+        };
        let day = date.day() as f64;
        CalcResult::Number(day)
    }
@@ -42,20 +44,19 @@ impl Model {
            return CalcResult::new_args_number_error(cell);
        }
        let serial_number = match self.get_number(&args[0], cell) {
-            Ok(c) => {
-                let t = c.floor() as i64;
-                if t < 0 {
-                    return CalcResult::Error {
-                        error: Error::NUM,
-                        origin: cell,
-                        message: "Function MONTH parameter 1 value is negative. It should be positive or zero.".to_string(),
-                    };
-                }
-                t
-            }
+            Ok(c) => c.floor() as i64,
            Err(s) => return s,
        };
-        let date = from_excel_date(serial_number);
+        let date = match from_excel_date(serial_number) {
+            Ok(date) => date,
+            Err(_) => {
+                return CalcResult::Error {
+                    error: Error::NUM,
+                    origin: cell,
+                    message: "Out of range parameters for date".to_string(),
+                }
+            }
+        };
        let month = date.month() as f64;
        CalcResult::Number(month)
    }
@@ -79,6 +80,23 @@ impl Model {
            }
            Err(s) => return s,
        };
+        let date = match from_excel_date(serial_number) {
+            Ok(date) => date,
+            Err(_) => {
+                return CalcResult::Error {
+                    error: Error::NUM,
+                    origin: cell,
+                    message: "Out of range parameters for date".to_string(),
+                }
+            }
+        };
+        if serial_number > MAXIMUM_DATE_SERIAL_NUMBER as i64 {
+            return CalcResult::Error {
+                error: Error::NUM,
+                origin: cell,
+                message: "Function DAY parameter 1 value is too large.".to_string(),
+            };
+        }

        let months = match self.get_number_no_bools(&args[1], cell) {
            Ok(c) => {
@@ -91,9 +109,9 @@ impl Model {
        let months_abs = months.unsigned_abs();

        let native_date = if months > 0 {
-            from_excel_date(serial_number) + Months::new(months_abs)
+            date + Months::new(months_abs)
        } else {
-            from_excel_date(serial_number) - Months::new(months_abs)
+            date - Months::new(months_abs)
        };

        // Instead of calculating the end of month we compute the first day of the following month
@@ -137,32 +155,18 @@ impl Model {
        let month = match self.get_number(&args[1], cell) {
            Ok(c) => {
                let t = c.floor();
-                if t < 0.0 {
-                    return CalcResult::Error {
-                        error: Error::NUM,
-                        origin: cell,
-                        message: "Out of range parameters for date".to_string(),
-                    };
-                }
-                t as u32
+                t as i32
            }
            Err(s) => return s,
        };
        let day = match self.get_number(&args[2], cell) {
            Ok(c) => {
                let t = c.floor();
-                if t < 0.0 {
-                    return CalcResult::Error {
-                        error: Error::NUM,
-                        origin: cell,
-                        message: "Out of range parameters for date".to_string(),
-                    };
-                }
-                t as u32
+                t as i32
            }
            Err(s) => return s,
        };
-        match date_to_serial_number(day, month, year) {
+        match permissive_date_to_serial_number(day, month, year) {
            Ok(serial_number) => CalcResult::Number(serial_number as f64),
            Err(message) => CalcResult::Error {
                error: Error::NUM,
@@ -178,20 +182,19 @@ impl Model {
            return CalcResult::new_args_number_error(cell);
        }
        let serial_number = match self.get_number(&args[0], cell) {
-            Ok(c) => {
-                let t = c.floor() as i64;
-                if t < 0 {
-                    return CalcResult::Error {
-                        error: Error::NUM,
-                        origin: cell,
-                        message: "Function YEAR parameter 1 value is negative. It should be positive or zero.".to_string(),
-                    };
-                }
-                t
-            }
+            Ok(c) => c.floor() as i64,
            Err(s) => return s,
        };
-        let date = from_excel_date(serial_number);
+        let date = match from_excel_date(serial_number) {
+            Ok(date) => date,
+            Err(_) => {
+                return CalcResult::Error {
+                    error: Error::NUM,
+                    origin: cell,
+                    message: "Out of range parameters for date".to_string(),
+                }
+            }
+        };
        let year = date.year() as f64;
        CalcResult::Number(year)
    }
@@ -203,20 +206,19 @@ impl Model {
            return CalcResult::new_args_number_error(cell);
        }
        let serial_number = match self.get_number(&args[0], cell) {
-            Ok(c) => {
-                let t = c.floor() as i64;
-                if t < 0 {
-                    return CalcResult::Error {
-                        error: Error::NUM,
-                        origin: cell,
-                        message: "Parameter 1 value is negative. It should be positive or zero."
-                            .to_string(),
-                    };
-                }
-                t
-            }
+            Ok(c) => c.floor() as i64,
            Err(s) => return s,
        };
+        let date = match from_excel_date(serial_number) {
+            Ok(date) => date,
+            Err(_) => {
+                return CalcResult::Error {
+                    error: Error::NUM,
+                    origin: cell,
+                    message: "Out of range parameters for date".to_string(),
+                }
+            }
+        };

        let months = match self.get_number(&args[1], cell) {
            Ok(c) => {
@@ -229,13 +231,13 @@ impl Model {
        let months_abs = months.unsigned_abs();

        let native_date = if months > 0 {
-            from_excel_date(serial_number) + Months::new(months_abs)
+            date + Months::new(months_abs)
        } else {
-            from_excel_date(serial_number) - Months::new(months_abs)
+            date - Months::new(months_abs)
        };

        let serial_number = native_date.num_days_from_ce() - EXCEL_DATE_BASE;
-        if serial_number < 0 {
+        if serial_number < MINIMUM_DATE_SERIAL_NUMBER {
            return CalcResult::Error {
                error: Error::NUM,
                origin: cell,
--- a/base/src/functions/engineering/complex.rs
+++ b/base/src/functions/engineering/complex.rs
@@ -188,10 +188,7 @@ impl Model {
        node: &Node,
        cell: CellReferenceIndex,
    ) -> Result<(f64, f64, Suffix), CalcResult> {
-        let value = match self.get_string(node, cell) {
-            Ok(s) => s,
-            Err(s) => return Err(s),
-        };
+        let value = self.get_string(node, cell)?;
        if value.is_empty() {
            return Ok((0.0, 0.0, Suffix::I));
        }
--- a/base/src/functions/financial.rs
+++ b/base/src/functions/financial.rs
@@ -2,7 +2,7 @@ use chrono::Datelike;

 use crate::{
    calc_result::CalcResult,
-    constants::{LAST_COLUMN, LAST_ROW},
+    constants::{LAST_COLUMN, LAST_ROW, MAXIMUM_DATE_SERIAL_NUMBER, MINIMUM_DATE_SERIAL_NUMBER},
    expressions::{parser::Node, token::Error, types::CellReferenceIndex},
    formatter::dates::from_excel_date,
    model::Model,
@@ -13,37 +13,32 @@ use super::financial_util::{compute_irr, compute_npv, compute_rate, compute_xirr
 // See:
 // https://github.com/apache/openoffice/blob/c014b5f2b55cff8d4b0c952d5c16d62ecde09ca1/main/scaddins/source/analysis/financial.cxx

-// FIXME: Is this enough?
-fn is_valid_date(date: f64) -> bool {
-    date > 0.0
-}
-
-fn is_less_than_one_year(start_date: i64, end_date: i64) -> bool {
+fn is_less_than_one_year(start_date: i64, end_date: i64) -> Result<bool, String> {
+    let end = from_excel_date(end_date)?;
+    let start = from_excel_date(start_date)?;
    if end_date - start_date < 365 {
-        return true;
+        return Ok(true);
    }
-    let end = from_excel_date(end_date);
-    let start = from_excel_date(start_date);
    let end_year = end.year();
    let start_year = start.year();
    if end_year == start_year {
-        return true;
+        return Ok(true);
    }
    if end_year != start_year + 1 {
-        return false;
+        return Ok(false);
    }
    let start_month = start.month();
    let end_month = end.month();
    if end_month < start_month {
-        return true;
+        return Ok(true);
    }
    if end_month > start_month {
-        return false;
+        return Ok(false);
    }
    // we are one year later same month
    let start_day = start.day();
    let end_day = end.day();
-    end_day <= start_day
+    Ok(end_day <= start_day)
 }

 fn compute_payment(
@@ -436,7 +431,7 @@ impl Model {
        }
        if rate == -1.0 {
            return CalcResult::Error {
-                error: Error::NUM,
+                error: Error::DIV,
                origin: cell,
                message: "Rate must be != -1".to_string(),
            };
@@ -923,7 +918,9 @@ impl Model {
        }
        let first_date = dates[0];
        for date in &dates {
-            if !is_valid_date(*date) {
+            if *date < MINIMUM_DATE_SERIAL_NUMBER as f64
+                || *date > MAXIMUM_DATE_SERIAL_NUMBER as f64
+            {
                // Excel docs claim that if any number in dates is not a valid date,
                // XNPV returns the #VALUE! error value, but it seems to return #VALUE!
                return CalcResult::new_error(
@@ -989,7 +986,9 @@ impl Model {
        }
        let first_date = dates[0];
        for date in &dates {
-            if !is_valid_date(*date) {
+            if *date < MINIMUM_DATE_SERIAL_NUMBER as f64
+                || *date > MAXIMUM_DATE_SERIAL_NUMBER as f64
+            {
                return CalcResult::new_error(
                    Error::NUM,
                    cell,
@@ -1373,9 +1372,10 @@ impl Model {
            Ok(f) => f,
            Err(s) => return s,
        };
-        if !is_valid_date(settlement) || !is_valid_date(maturity) {
-            return CalcResult::new_error(Error::NUM, cell, "Invalid date".to_string());
-        }
+        let less_than_one_year = match is_less_than_one_year(settlement as i64, maturity as i64) {
+            Ok(f) => f,
+            Err(_) => return CalcResult::new_error(Error::NUM, cell, "Invalid date".to_string()),
+        };
        if settlement > maturity {
            return CalcResult::new_error(
                Error::NUM,
@@ -1383,7 +1383,7 @@ impl Model {
                "settlement should be <= maturity".to_string(),
            );
        }
-        if !is_less_than_one_year(settlement as i64, maturity as i64) {
+        if !less_than_one_year {
            return CalcResult::new_error(
                Error::NUM,
                cell,
@@ -1437,9 +1437,10 @@ impl Model {
            Ok(f) => f,
            Err(s) => return s,
        };
-        if !is_valid_date(settlement) || !is_valid_date(maturity) {
-            return CalcResult::new_error(Error::NUM, cell, "Invalid date".to_string());
-        }
+        let less_than_one_year = match is_less_than_one_year(settlement as i64, maturity as i64) {
+            Ok(f) => f,
+            Err(_) => return CalcResult::new_error(Error::NUM, cell, "Invalid date".to_string()),
+        };
        if settlement > maturity {
            return CalcResult::new_error(
                Error::NUM,
@@ -1447,7 +1448,7 @@ impl Model {
                "settlement should be <= maturity".to_string(),
            );
        }
-        if !is_less_than_one_year(settlement as i64, maturity as i64) {
+        if !less_than_one_year {
            return CalcResult::new_error(
                Error::NUM,
                cell,
@@ -1487,9 +1488,10 @@ impl Model {
            Ok(f) => f,
            Err(s) => return s,
        };
-        if !is_valid_date(settlement) || !is_valid_date(maturity) {
-            return CalcResult::new_error(Error::NUM, cell, "Invalid date".to_string());
-        }
+        let less_than_one_year = match is_less_than_one_year(settlement as i64, maturity as i64) {
+            Ok(f) => f,
+            Err(_) => return CalcResult::new_error(Error::NUM, cell, "Invalid date".to_string()),
+        };
        if settlement > maturity {
            return CalcResult::new_error(
                Error::NUM,
@@ -1497,7 +1499,7 @@ impl Model {
                "settlement should be <= maturity".to_string(),
            );
        }
-        if !is_less_than_one_year(settlement as i64, maturity as i64) {
+        if !less_than_one_year {
            return CalcResult::new_error(
                Error::NUM,
                cell,
--- a/base/src/functions/information.rs
+++ b/base/src/functions/information.rs
@@ -247,45 +247,67 @@ impl Model {
            return CalcResult::Number(cell.sheet as f64 + 1.0);
        }
        // The arg could be a defined name or a table
-        let arg = &args[0];
-        if let Node::VariableKind(name) = arg {
-            // Let's see if it is a defined name
-            if let Some(defined_name) = self.parsed_defined_names.get(&(None, name.to_lowercase()))
-            {
-                match defined_name {
-                    ParsedDefinedName::CellReference(reference) => {
-                        return CalcResult::Number(reference.sheet as f64 + 1.0)
+        // let  = &args[0];
+        match &args[0] {
+            Node::DefinedNameKind((name, scope)) => {
+                // Let's see if it is a defined name
+                if let Some(defined_name) = self
+                    .parsed_defined_names
+                    .get(&(*scope, name.to_lowercase()))
+                {
+                    match defined_name {
+                        ParsedDefinedName::CellReference(reference) => {
+                            return CalcResult::Number(reference.sheet as f64 + 1.0)
+                        }
+                        ParsedDefinedName::RangeReference(range) => {
+                            return CalcResult::Number(range.left.sheet as f64 + 1.0)
+                        }
+                        ParsedDefinedName::InvalidDefinedNameFormula => {
+                            return CalcResult::Error {
+                                error: Error::ERROR,
+                                origin: cell,
+                                message: "Invalid name".to_string(),
+                            };
+                        }
                    }
-                    ParsedDefinedName::RangeReference(range) => {
-                        return CalcResult::Number(range.left.sheet as f64 + 1.0)
-                    }
-                    ParsedDefinedName::InvalidDefinedNameFormula => {
-                        return CalcResult::Error {
-                            error: Error::NA,
-                            origin: cell,
-                            message: "Invalid name".to_string(),
-                        };
+                } else {
+                    // This should never happen
+                    return CalcResult::Error {
+                        error: Error::ERROR,
+                        origin: cell,
+                        message: "Invalid name".to_string(),
+                    };
+                }
+            }
+            Node::TableNameKind(name) => {
+                // Now let's see if it is a table
+                for (table_name, table) in &self.workbook.tables {
+                    if table_name == name {
+                        if let Some(sheet_index) = self.get_sheet_index_by_name(&table.sheet_name) {
+                            return CalcResult::Number(sheet_index as f64 + 1.0);
+                        } else {
+                            break;
+                        }
                    }
                }
            }
-            // Now let's see if it is a table
-            for (table_name, table) in &self.workbook.tables {
-                if table_name == name {
-                    if let Some(sheet_index) = self.get_sheet_index_by_name(&table.sheet_name) {
-                        return CalcResult::Number(sheet_index as f64 + 1.0);
-                    } else {
-                        break;
-                    }
+            Node::WrongVariableKind(name) => {
+                return CalcResult::Error {
+                    error: Error::NAME,
+                    origin: cell,
+                    message: format!("Name not found: {name}"),
+                }
+            }
+            arg => {
+                // Now it should be the name of a sheet
+                let sheet_name = match self.get_string(arg, cell) {
+                    Ok(s) => s,
+                    Err(e) => return e,
+                };
+                if let Some(sheet_index) = self.get_sheet_index_by_name(&sheet_name) {
+                    return CalcResult::Number(sheet_index as f64 + 1.0);
                }
            }
-        }
-        // Now it should be the name of a sheet
-        let sheet_name = match self.get_string(arg, cell) {
-            Ok(s) => s,
-            Err(e) => return e,
-        };
-        if let Some(sheet_index) = self.get_sheet_index_by_name(&sheet_name) {
-            return CalcResult::Number(sheet_index as f64 + 1.0);
        }
        CalcResult::Error {
            error: Error::NA,
--- a/base/src/functions/logical.rs
+++ b/base/src/functions/logical.rs
@@ -7,6 +7,22 @@ use crate::{
 use super::util::compare_values;

 impl Model {
+    pub(crate) fn fn_true(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.is_empty() {
+            CalcResult::Boolean(true)
+        } else {
+            CalcResult::new_args_number_error(cell)
+        }
+    }
+
+    pub(crate) fn fn_false(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        if args.is_empty() {
+            CalcResult::Boolean(false)
+        } else {
+            CalcResult::new_args_number_error(cell)
+        }
+    }
+
    pub(crate) fn fn_if(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
        if args.len() == 2 || args.len() == 3 {
            let cond_result = self.get_boolean(&args[0], cell);
@@ -66,91 +82,61 @@ impl Model {
    }

    pub(crate) fn fn_and(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let mut true_count = 0;
-        for arg in args {
-            match self.evaluate_node_in_context(arg, cell) {
-                CalcResult::Boolean(b) => {
-                    if !b {
-                        return CalcResult::Boolean(false);
-                    }
-                    true_count += 1;
-                }
-                CalcResult::Number(value) => {
-                    if value == 0.0 {
-                        return CalcResult::Boolean(false);
-                    }
-                    true_count += 1;
-                }
-                CalcResult::String(_value) => {
-                    true_count += 1;
-                }
-                CalcResult::Range { left, right } => {
-                    if left.sheet != right.sheet {
-                        return CalcResult::new_error(
-                            Error::VALUE,
-                            cell,
-                            "Ranges are in different sheets".to_string(),
-                        );
-                    }
-                    for row in left.row..(right.row + 1) {
-                        for column in left.column..(right.column + 1) {
-                            match self.evaluate_cell(CellReferenceIndex {
-                                sheet: left.sheet,
-                                row,
-                                column,
-                            }) {
-                                CalcResult::Boolean(b) => {
-                                    if !b {
-                                        return CalcResult::Boolean(false);
-                                    }
-                                    true_count += 1;
-                                }
-                                CalcResult::Number(value) => {
-                                    if value == 0.0 {
-                                        return CalcResult::Boolean(false);
-                                    }
-                                    true_count += 1;
-                                }
-                                CalcResult::String(_value) => {
-                                    true_count += 1;
-                                }
-                                error @ CalcResult::Error { .. } => return error,
-                                CalcResult::Range { .. } => {}
-                                CalcResult::EmptyCell | CalcResult::EmptyArg => {}
-                            }
-                        }
-                    }
-                }
-                error @ CalcResult::Error { .. } => return error,
-                CalcResult::EmptyCell | CalcResult::EmptyArg => {}
-            };
-        }
-        if true_count == 0 {
-            return CalcResult::new_error(
-                Error::VALUE,
-                cell,
-                "Boolean values not found".to_string(),
-            );
-        }
-        CalcResult::Boolean(true)
+        self.logical_nary(
+            args,
+            cell,
+            |acc, value| acc.unwrap_or(true) && value,
+            Some(false),
+        )
    }

    pub(crate) fn fn_or(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        self.logical_nary(
+            args,
+            cell,
+            |acc, value| acc.unwrap_or(false) || value,
+            Some(true),
+        )
+    }
+
+    pub(crate) fn fn_xor(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
+        self.logical_nary(args, cell, |acc, value| acc.unwrap_or(false) ^ value, None)
+    }
+
+    /// Base function for AND, OR, XOR. These are all n-ary functions that perform a boolean operation on a series of
+    /// boolean values. These boolean values are sourced from `args`. Note that there is not a 1-1 relationship between
+    /// arguments and boolean values evaluated (see how Ranges are handled for example).
+    ///
+    /// Each argument in `args` is evaluated and the resulting value is interpreted as a boolean as follows:
+    /// - Boolean: The value is used directly.
+    /// - Number: 0 is FALSE, all other values are TRUE.
+    /// - Range: Each cell in the range is evaluated as if they were individual arguments with some caveats
+    /// - Empty arg: FALSE
+    /// - Empty cell & String: Ignored, behaves exactly like the argument wasn't passed in at all
+    /// - Error: Propagated
+    ///
+    /// If no arguments are provided, or all arguments are ignored, the function returns a #VALUE! error
+    ///
+    /// **`fold_fn`:** The function that combines the running result with the next value boolean value. The running result
+    /// starts as `None`.
+    ///
+    /// **`short_circuit_value`:** If the running result reaches `short_circuit_value`, the function returns early.
+    fn logical_nary(
+        &mut self,
+        args: &[Node],
+        cell: CellReferenceIndex,
+        fold_fn: fn(Option<bool>, bool) -> bool,
+        short_circuit_value: Option<bool>,
+    ) -> CalcResult {
        if args.is_empty() {
            return CalcResult::new_args_number_error(cell);
        }
-        let mut result = false;
+
+        let mut result = None;
        for arg in args {
            match self.evaluate_node_in_context(arg, cell) {
-                CalcResult::Boolean(value) => result = value || result,
-                CalcResult::Number(value) => {
-                    if value != 0.0 {
-                        return CalcResult::Boolean(true);
-                    }
-                }
-                CalcResult::String(_value) => {
-                    return CalcResult::Boolean(true);
-                }
+                CalcResult::Boolean(value) => result = Some(fold_fn(result, value)),
+                CalcResult::Number(value) => result = Some(fold_fn(result, value != 0.0)),
                CalcResult::Range { left, right } => {
                    if left.sheet != right.sheet {
                        return CalcResult::new_error(
@@ -166,94 +152,58 @@ impl Model {
                                row,
                                column,
                            }) {
-                                CalcResult::Boolean(value) => {
-                                    result = value || result;
-                                }
+                                CalcResult::Boolean(value) => result = Some(fold_fn(result, value)),
                                CalcResult::Number(value) => {
-                                    if value != 0.0 {
-                                        return CalcResult::Boolean(true);
-                                    }
-                                }
-                                CalcResult::String(_value) => {
-                                    return CalcResult::Boolean(true);
+                                    result = Some(fold_fn(result, value != 0.0))
                                }
                                error @ CalcResult::Error { .. } => return error,
-                                CalcResult::Range { .. } => {}
-                                CalcResult::EmptyCell | CalcResult::EmptyArg => {}
+                                CalcResult::EmptyArg => {} // unreachable
+                                CalcResult::Range { .. }
+                                | CalcResult::String { .. }
+                                | CalcResult::EmptyCell => {}
+                            }
+                            if let (Some(current_result), Some(short_circuit_value)) =
+                                (result, short_circuit_value)
+                            {
+                                if current_result == short_circuit_value {
+                                    return CalcResult::Boolean(current_result);
+                                }
                            }
                        }
                    }
                }
                error @ CalcResult::Error { .. } => return error,
-                CalcResult::EmptyCell | CalcResult::EmptyArg => {}
-            };
-        }
-        CalcResult::Boolean(result)
-    }
-
-    /// XOR(logical1, [logical]*,...)
-    /// Logical1 is required, subsequent logical values are optional. Can be logical values, arrays, or references.
-    /// The result of XOR is TRUE when the number of TRUE inputs is odd and FALSE when the number of TRUE inputs is even.
-    pub(crate) fn fn_xor(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
-        let mut true_count = 0;
-        let mut false_count = 0;
-        for arg in args {
-            match self.evaluate_node_in_context(arg, cell) {
-                CalcResult::Boolean(b) => {
-                    if b {
-                        true_count += 1;
-                    } else {
-                        false_count += 1;
-                    }
-                }
-                CalcResult::Number(value) => {
-                    if value != 0.0 {
-                        true_count += 1;
-                    } else {
-                        false_count += 1;
-                    }
-                }
-                CalcResult::Range { left, right } => {
-                    if left.sheet != right.sheet {
-                        return CalcResult::new_error(
-                            Error::VALUE,
-                            cell,
-                            "Ranges are in different sheets".to_string(),
-                        );
-                    }
-                    for row in left.row..(right.row + 1) {
-                        for column in left.column..(right.column + 1) {
-                            match self.evaluate_cell(CellReferenceIndex {
-                                sheet: left.sheet,
-                                row,
-                                column,
-                            }) {
-                                CalcResult::Boolean(b) => {
-                                    if b {
-                                        true_count += 1;
-                                    } else {
-                                        false_count += 1;
-                                    }
-                                }
-                                CalcResult::Number(value) => {
-                                    if value != 0.0 {
-                                        true_count += 1;
-                                    } else {
-                                        false_count += 1;
-                                    }
-                                }
-                                _ => {}
-                            }
+                CalcResult::EmptyArg => result = Some(result.unwrap_or(false)),
+                // Strings are ignored unless they are "TRUE" or "FALSE" (case insensitive). EXCEPT if the string value
+                // comes from a reference, in which case it is always ignored regardless of its value.
+                CalcResult::String(..) => {
+                    if !matches!(arg, Node::ReferenceKind { .. }) {
+                        if let Ok(f) = self.get_boolean(arg, cell) {
+                            result = Some(fold_fn(result, f));
                        }
                    }
                }
-                _ => {}
-            };
+                // References to empty cells are ignored. If all args are ignored the result is #VALUE!
+                CalcResult::EmptyCell => {}
+            }
+
+            if let (Some(current_result), Some(short_circuit_value)) = (result, short_circuit_value)
+            {
+                if current_result == short_circuit_value {
+                    return CalcResult::Boolean(current_result);
+                }
+            }
        }
-        if true_count == 0 && false_count == 0 {
-            return CalcResult::new_error(Error::VALUE, cell, "No booleans found".to_string());
+
+        if let Some(result) = result {
+            CalcResult::Boolean(result)
+        } else {
+            CalcResult::new_error(
+                Error::VALUE,
+                cell,
+                "No logical values in argument list".to_string(),
+            )
        }
-        CalcResult::Boolean(true_count % 2 == 1)
    }

    /// =SWITCH(expression, case1, value1, [case, value]*, [default])
--- a/base/src/functions/mod.rs
+++ b/base/src/functions/mod.rs
@@ -949,7 +949,7 @@ impl Model {
        match kind {
            // Logical
            Function::And => self.fn_and(args, cell),
-            Function::False => CalcResult::Boolean(false),
+            Function::False => self.fn_false(args, cell),
            Function::If => self.fn_if(args, cell),
            Function::Iferror => self.fn_iferror(args, cell),
            Function::Ifna => self.fn_ifna(args, cell),
@@ -957,7 +957,7 @@ impl Model {
            Function::Not => self.fn_not(args, cell),
            Function::Or => self.fn_or(args, cell),
            Function::Switch => self.fn_switch(args, cell),
-            Function::True => CalcResult::Boolean(true),
+            Function::True => self.fn_true(args, cell),
            Function::Xor => self.fn_xor(args, cell),
            // Math and trigonometry
            Function::Sin => self.fn_sin(args, cell),
--- a/base/src/lib.rs
+++ b/base/src/lib.rs
@@ -25,6 +25,8 @@
 #![doc = include_str!("../examples/formulas_and_errors.rs")]
 //! ```

+#![warn(clippy::print_stdout)]
+
 pub mod calc_result;
 pub mod cell;
 pub mod expressions;
--- a/base/src/model.rs
+++ b/base/src/model.rs
@@ -8,14 +8,15 @@ use crate::{
    cell::CellValue,
    constants::{self, LAST_COLUMN, LAST_ROW},
    expressions::{
+        lexer::LexerMode,
        parser::{
            move_formula::{move_formula, MoveContext},
-            stringify::{to_rc_format, to_string},
+            stringify::{rename_defined_name_in_node, to_rc_format, to_string},
            Node, Parser,
        },
        token::{get_error_by_name, Error, OpCompare, OpProduct, OpSum, OpUnary},
        types::*,
-        utils::{self, is_valid_column_number, is_valid_row},
+        utils::{self, is_valid_column_number, is_valid_identifier, is_valid_row},
    },
    formatter::{
        format::{format_number, parse_formatted_number},
@@ -72,6 +73,7 @@ pub(crate) enum CellState {
 }

 /// A parsed formula for a defined name
+#[derive(Clone)]
 pub(crate) enum ParsedDefinedName {
    /// CellReference (`=C4`)
    CellReference(CellReferenceIndex),
@@ -79,9 +81,6 @@ pub(crate) enum ParsedDefinedName {
    RangeReference(Range),
    /// `=SomethingElse`
    InvalidDefinedNameFormula,
-    // TODO: Support constants in defined names
-    // TODO: Support formulas in defined names
-    // TODO: Support tables in defined names
 }

 /// A dynamical IronCalc model.
@@ -417,38 +416,40 @@ impl Model {
                // TODO: NOT IMPLEMENTED
                CalcResult::new_error(Error::NIMPL, cell, "Arrays not implemented".to_string())
            }
-            VariableKind(defined_name) => {
-                let parsed_defined_name = self
-                    .parsed_defined_names
-                    .get(&(Some(cell.sheet), defined_name.to_lowercase())) // try getting local defined name
-                    .or_else(|| {
-                        self.parsed_defined_names
-                            .get(&(None, defined_name.to_lowercase()))
-                    }); // fallback to global
-
-                if let Some(parsed_defined_name) = parsed_defined_name {
+            DefinedNameKind((name, scope)) => {
+                if let Ok(Some(parsed_defined_name)) = self.get_parsed_defined_name(name, *scope) {
                    match parsed_defined_name {
                        ParsedDefinedName::CellReference(reference) => {
-                            self.evaluate_cell(*reference)
+                            self.evaluate_cell(reference)
                        }
                        ParsedDefinedName::RangeReference(range) => CalcResult::Range {
                            left: range.left,
                            right: range.right,
                        },
                        ParsedDefinedName::InvalidDefinedNameFormula => CalcResult::new_error(
-                            Error::NIMPL,
+                            Error::NAME,
                            cell,
-                            format!("Defined name \"{}\" is not a reference.", defined_name),
+                            format!("Defined name \"{}\" is not a reference.", name),
                        ),
                    }
                } else {
                    CalcResult::new_error(
                        Error::NAME,
                        cell,
-                        format!("Defined name \"{}\" not found.", defined_name),
+                        format!("Defined name \"{}\" not found.", name),
                    )
                }
            }
+            TableNameKind(s) => CalcResult::new_error(
+                Error::NAME,
+                cell,
+                format!("table name \"{}\" not supported.", s),
+            ),
+            WrongVariableKind(s) => CalcResult::new_error(
+                Error::NAME,
+                cell,
+                format!("Variable name \"{}\" not found.", s),
+            ),
            CompareKind { kind, left, right } => {
                let l = self.evaluate_node_in_context(left, cell);
                if l.is_error() {
@@ -682,6 +683,13 @@ impl Model {
        Err(format!("Invalid color: {}", color))
    }

+    /// Changes the visibility of a sheet
+    pub fn set_sheet_state(&mut self, sheet: u32, state: SheetState) -> Result<(), String> {
+        let worksheet = self.workbook.worksheet_mut(sheet)?;
+        worksheet.state = state;
+        Ok(())
+    }
+
    /// Makes the grid lines in the sheet visible (`true`) or hidden (`false`)
    pub fn set_show_grid_lines(&mut self, sheet: u32, show_grid_lines: bool) -> Result<(), String> {
        let worksheet = self.workbook.worksheet_mut(sheet)?;
@@ -857,6 +865,11 @@ impl Model {

        let worksheet_names = worksheets.iter().map(|s| s.get_name()).collect();

+        let defined_names = workbook
+            .get_defined_names_with_scope()
+            .iter()
+            .map(|s| (s.0.to_owned(), s.1))
+            .collect();
        // add all tables
        // let mut tables = Vec::new();
        // for worksheet in worksheets {
@@ -866,7 +879,7 @@ impl Model {
        //     }
        //     tables.push(tables_in_sheet);
        // }
-        let parser = Parser::new(worksheet_names, workbook.tables.clone());
+        let parser = Parser::new(worksheet_names, defined_names, workbook.tables.clone());
        let cells = HashMap::new();
        let locale = get_locale(&workbook.settings.locale)
            .map_err(|_| "Invalid locale".to_string())?
@@ -947,10 +960,7 @@ impl Model {
                }
            }
        }
-        let sheet = match self.get_sheet_index_by_name(&sheet_name) {
-            Some(s) => s,
-            None => return None,
-        };
+        let sheet = self.get_sheet_index_by_name(&sheet_name)?;
        let row = match row.parse::<i32>() {
            Ok(r) => r,
            Err(_) => return None,
@@ -1027,7 +1037,7 @@ impl Model {
                column: source.column,
            };
            let formula_str = move_formula(
-                &self.parser.parse(formula, &Some(cell_reference)),
+                &self.parser.parse(formula, &cell_reference),
                &MoveContext {
                    source_sheet_name: &source_sheet_name,
                    row: source.row,
@@ -1135,7 +1145,7 @@ impl Model {
                row: source.row,
                column: source.column,
            };
-            let formula = &self.parser.parse(formula_str, &Some(cell_reference));
+            let formula = &self.parser.parse(formula_str, &cell_reference);
            let cell_reference = CellReferenceRC {
                sheet: target_sheet_name,
                row: target.row,
@@ -1511,13 +1521,11 @@ impl Model {
            column,
        };
        let shared_formulas = &mut worksheet.shared_formulas;
-        let mut parsed_formula = self.parser.parse(formula, &Some(cell_reference.clone()));
+        let mut parsed_formula = self.parser.parse(formula, &cell_reference);
        // If the formula fails to parse try adding a parenthesis
        // SUM(A1:A3  => SUM(A1:A3)
        if let Node::ParseErrorKind { .. } = parsed_formula {
-            let new_parsed_formula = self
-                .parser
-                .parse(&format!("{})", formula), &Some(cell_reference));
+            let new_parsed_formula = self.parser.parse(&format!("{})", formula), &cell_reference);
            match new_parsed_formula {
                Node::ParseErrorKind { .. } => {}
                _ => parsed_formula = new_parsed_formula,
@@ -1596,6 +1604,42 @@ impl Model {
            .set_cell_with_number(row, column, value, style)
    }

+    // Helper function that returns a defined name given the name and scope
+    fn get_parsed_defined_name(
+        &self,
+        name: &str,
+        scope: Option<u32>,
+    ) -> Result<Option<ParsedDefinedName>, String> {
+        let name_upper = name.to_uppercase();
+
+        for (key, df) in &self.parsed_defined_names {
+            if key.1.to_uppercase() == name_upper && key.0 == scope {
+                return Ok(Some(df.clone()));
+            }
+        }
+        Ok(None)
+    }
+
+    // Returns the formula for a defined name
+    pub(crate) fn get_defined_name_formula(
+        &self,
+        name: &str,
+        scope: Option<u32>,
+    ) -> Result<String, String> {
+        let name_upper = name.to_uppercase();
+        let defined_names = &self.workbook.defined_names;
+        let sheet_id = match scope {
+            Some(index) => Some(self.workbook.worksheet(index)?.sheet_id),
+            None => None,
+        };
+        for df in defined_names {
+            if df.name.to_uppercase() == name_upper && df.sheet_id == sheet_id {
+                return Ok(df.formula.clone());
+            }
+        }
+        Err("Defined name not found".to_string())
+    }
+
    /// Gets the Excel Value (Bool, Number, String) of a cell
    ///
    /// See also:
@@ -1986,6 +2030,137 @@ impl Model {
            .worksheet_mut(sheet)?
            .set_row_height(column, height)
    }
+
+    /// Adds a new defined name
+    pub fn new_defined_name(
+        &mut self,
+        name: &str,
+        scope: Option<u32>,
+        formula: &str,
+    ) -> Result<(), String> {
+        if !is_valid_identifier(name) {
+            return Err("Invalid defined name".to_string());
+        };
+        let name_upper = name.to_uppercase();
+        let defined_names = &self.workbook.defined_names;
+        let sheet_id = match scope {
+            Some(index) => Some(self.workbook.worksheet(index)?.sheet_id),
+            None => None,
+        };
+        // if the defined name already exist return error
+        for df in defined_names {
+            if df.name.to_uppercase() == name_upper && df.sheet_id == sheet_id {
+                return Err("Defined name already exists".to_string());
+            }
+        }
+        self.workbook.defined_names.push(DefinedName {
+            name: name.to_string(),
+            formula: formula.to_string(),
+            sheet_id,
+        });
+        self.reset_parsed_structures();
+
+        Ok(())
+    }
+
+    /// Delete defined name of name and scope
+    pub fn delete_defined_name(&mut self, name: &str, scope: Option<u32>) -> Result<(), String> {
+        let name_upper = name.to_uppercase();
+        let defined_names = &self.workbook.defined_names;
+        let sheet_id = match scope {
+            Some(index) => Some(self.workbook.worksheet(index)?.sheet_id),
+            None => None,
+        };
+        let mut index = None;
+        for (i, df) in defined_names.iter().enumerate() {
+            if df.name.to_uppercase() == name_upper && df.sheet_id == sheet_id {
+                index = Some(i);
+            }
+        }
+        if let Some(i) = index {
+            self.workbook.defined_names.remove(i);
+            self.reset_parsed_structures();
+            Ok(())
+        } else {
+            Err("Defined name not found".to_string())
+        }
+    }
+
+    /// Update defined name
+    pub fn update_defined_name(
+        &mut self,
+        name: &str,
+        scope: Option<u32>,
+        new_name: &str,
+        new_scope: Option<u32>,
+        new_formula: &str,
+    ) -> Result<(), String> {
+        if !is_valid_identifier(new_name) {
+            return Err("Invalid defined name".to_string());
+        };
+        let name_upper = name.to_uppercase();
+        let new_name_upper = new_name.to_uppercase();
+
+        if name_upper != new_name_upper || scope != new_scope {
+            for key in self.parsed_defined_names.keys() {
+                if key.1.to_uppercase() == new_name_upper && key.0 == new_scope {
+                    return Err("Defined name already exists".to_string());
+                }
+            }
+        }
+        let defined_names = &self.workbook.defined_names;
+        let sheet_id = match scope {
+            Some(index) => Some(self.workbook.worksheet(index)?.sheet_id),
+            None => None,
+        };
+
+        let new_sheet_id = match new_scope {
+            Some(index) => Some(self.workbook.worksheet(index)?.sheet_id),
+            None => None,
+        };
+
+        let mut index = None;
+        for (i, df) in defined_names.iter().enumerate() {
+            if df.name.to_uppercase() == name_upper && df.sheet_id == sheet_id {
+                index = Some(i);
+            }
+        }
+        if let Some(i) = index {
+            if let Some(df) = self.workbook.defined_names.get_mut(i) {
+                if new_name != df.name {
+                    // We need to rename the name in every formula:
+
+                    // Parse all formulas with the old name
+                    // All internal formulas are R1C1
+                    self.parser.set_lexer_mode(LexerMode::R1C1);
+                    let worksheets = &mut self.workbook.worksheets;
+                    for worksheet in worksheets {
+                        let cell_reference = CellReferenceRC {
+                            sheet: worksheet.get_name(),
+                            row: 1,
+                            column: 1,
+                        };
+                        let mut formulas = Vec::new();
+                        for formula in &worksheet.shared_formulas {
+                            let mut t = self.parser.parse(formula, &cell_reference);
+                            rename_defined_name_in_node(&mut t, name, scope, new_name);
+                            formulas.push(to_rc_format(&t));
+                        }
+                        worksheet.shared_formulas = formulas;
+                    }
+                    // Se the mode back to A1
+                    self.parser.set_lexer_mode(LexerMode::A1);
+                }
+                df.name = new_name.to_string();
+                df.sheet_id = new_sheet_id;
+                df.formula = new_formula.to_string();
+                self.reset_parsed_structures();
+            }
+            Ok(())
+        } else {
+            Err("Defined name not found".to_string())
+        }
+    }
 }

 #[cfg(test)]
--- a/base/src/new_empty.rs
+++ b/base/src/new_empty.rs
@@ -85,14 +85,14 @@ impl Model {
        let worksheets = &self.workbook.worksheets;
        for worksheet in worksheets {
            let shared_formulas = &worksheet.shared_formulas;
-            let cell_reference = &Some(CellReferenceRC {
+            let cell_reference = CellReferenceRC {
                sheet: worksheet.get_name(),
                row: 1,
                column: 1,
-            });
+            };
            let mut parse_formula = Vec::new();
            for formula in shared_formulas {
-                let t = self.parser.parse(formula, cell_reference);
+                let t = self.parser.parse(formula, &cell_reference);
                parse_formula.push(t);
            }
            self.parsed_formulas.push(parse_formula);
@@ -144,8 +144,14 @@ impl Model {

    /// Reparses all formulas and defined names
    pub(crate) fn reset_parsed_structures(&mut self) {
+        let defined_names = self
+            .workbook
+            .get_defined_names_with_scope()
+            .iter()
+            .map(|s| (s.0.to_owned(), s.1))
+            .collect();
        self.parser
-            .set_worksheets(self.workbook.get_worksheet_names());
+            .set_worksheets_and_names(self.workbook.get_worksheet_names(), defined_names);
        self.parsed_formulas = vec![];
        self.parse_formulas();
        self.parsed_defined_names = HashMap::new();
@@ -262,11 +268,11 @@ impl Model {
        // We use iter because the default would be a mut_iter and we don't need a mutable reference
        let worksheets = &mut self.workbook.worksheets;
        for worksheet in worksheets {
-            let cell_reference = &Some(CellReferenceRC {
+            let cell_reference = &CellReferenceRC {
                sheet: worksheet.get_name(),
                row: 1,
                column: 1,
-            });
+            };
            let mut formulas = Vec::new();
            for formula in &worksheet.shared_formulas {
                let mut t = self.parser.parse(formula, cell_reference);
@@ -388,7 +394,7 @@ impl Model {
        let parsed_formulas = Vec::new();
        let worksheets = &workbook.worksheets;
        let worksheet_names = worksheets.iter().map(|s| s.get_name()).collect();
-        let parser = Parser::new(worksheet_names, HashMap::new());
+        let parser = Parser::new(worksheet_names, vec![], HashMap::new());
        let cells = HashMap::new();

        // FIXME: Add support for display languages
--- a/base/src/test/mod.rs
+++ b/base/src/test/mod.rs
@@ -13,12 +13,14 @@ mod test_fn_averageifs;
 mod test_fn_choose;
 mod test_fn_concatenate;
 mod test_fn_count;
+mod test_fn_day;
 mod test_fn_exact;
 mod test_fn_financial;
 mod test_fn_formulatext;
 mod test_fn_if;
 mod test_fn_maxifs;
 mod test_fn_minifs;
+mod test_fn_or_xor;
 mod test_fn_product;
 mod test_fn_rept;
 mod test_fn_sum;
@@ -40,13 +42,13 @@ mod test_sheet_markup;
 mod test_sheets;
 mod test_styles;
 mod test_trigonometric;
+mod test_true_false;
 mod test_workbook;
 mod test_worksheet;
 pub(crate) mod util;

 mod engineering;
 mod test_fn_offset;
-mod test_fn_or;
 mod test_number_format;

 mod test_escape_quotes;
--- a/base/src/test/test_date_and_time.rs
+++ b/base/src/test/test_date_and_time.rs
@@ -37,12 +37,12 @@ fn test_fn_date_arguments() {
    assert_eq!(model._get_text("A3"), *"#ERROR!");
    assert_eq!(model._get_text("A4"), *"#ERROR!");

-    assert_eq!(model._get_text("A5"), *"#NUM!");
-    assert_eq!(model._get_text("A6"), *"#NUM!");
-    assert_eq!(model._get_text("A7"), *"#NUM!");
-    assert_eq!(model._get_text("A8"), *"#NUM!");
+    assert_eq!(model._get_text("A5"), *"10/10/1974");
+    assert_eq!(model._get_text("A6"), *"21/01/1975");
+    assert_eq!(model._get_text("A7"), *"10/02/1976");
+    assert_eq!(model._get_text("A8"), *"02/03/1975");

-    assert_eq!(model._get_text("A9"), *"#NUM!");
+    assert_eq!(model._get_text("A9"), *"01/03/1975");
    assert_eq!(model._get_text("A10"), *"29/02/1976");
    assert_eq!(
        model.get_cell_value_by_ref("Sheet1!A10"),
@@ -64,15 +64,18 @@ fn test_date_out_of_range() {

    // year (actually years < 1900 don't really make sense)
    model._set("C1", "=DATE(-1, 5, 5)");
+    // excel is not compatible with years past 9999
+    model._set("C2", "=DATE(10000, 5, 5)");

    model.evaluate();

-    assert_eq!(model._get_text("A1"), *"#NUM!");
-    assert_eq!(model._get_text("A2"), *"#NUM!");
-    assert_eq!(model._get_text("B1"), *"#NUM!");
-    assert_eq!(model._get_text("B2"), *"#NUM!");
+    assert_eq!(model._get_text("A1"), *"10/12/2021");
+    assert_eq!(model._get_text("A2"), *"10/01/2023");
+    assert_eq!(model._get_text("B1"), *"30/04/2042");
+    assert_eq!(model._get_text("B2"), *"01/06/2025");

    assert_eq!(model._get_text("C1"), *"#NUM!");
+    assert_eq!(model._get_text("C2"), *"#NUM!");
 }

 #[test]
@@ -129,8 +132,7 @@ fn test_day_small_serial() {
    model.evaluate();

    assert_eq!(model._get_text("A1"), *"#NUM!");
-    // This agrees with Google Docs and disagrees with Excel
-    assert_eq!(model._get_text("A2"), *"30");
+    assert_eq!(model._get_text("A2"), *"#NUM!");
    // Excel thinks is Feb 29, 1900
    assert_eq!(model._get_text("A3"), *"28");

@@ -150,8 +152,7 @@ fn test_month_small_serial() {
    model.evaluate();

    assert_eq!(model._get_text("A1"), *"#NUM!");
-    // This agrees with Google Docs and disagrees with Excel
-    assert_eq!(model._get_text("A2"), *"12");
+    assert_eq!(model._get_text("A2"), *"#NUM!");
    // We agree with Excel here (We are both in Feb)
    assert_eq!(model._get_text("A3"), *"2");

@@ -171,8 +172,7 @@ fn test_year_small_serial() {
    model.evaluate();

    assert_eq!(model._get_text("A1"), *"#NUM!");
-    // This agrees with Google Docs and disagrees with Excel
-    assert_eq!(model._get_text("A2"), *"1899");
+    assert_eq!(model._get_text("A2"), *"#NUM!");

    assert_eq!(model._get_text("A3"), *"1900");

@@ -204,7 +204,10 @@ fn test_date_early_dates() {
        model.get_cell_value_by_ref("Sheet1!A2"),
        Ok(CellValue::Number(60.0))
    );
-    assert_eq!(model._get_text("B2"), *"#NUM!");
+
+    // This does not agree with Excel, instead of mistakenly allowing
+    // for Feb 29, it will auto-wrap to the next day after Feb 28.
+    assert_eq!(model._get_text("B2"), *"01/03/1900");

    // This agrees with Excel from he onward
    assert_eq!(model._get_text("A3"), *"01/03/1900");
--- a/base/src/test/test_fn_day.rs
+++ b/base/src/test/test_fn_day.rs
@@ -0,0 +1,15 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::test::util::new_empty_model;
+
+#[test]
+fn test_fn_date_arguments() {
+    let mut model = new_empty_model();
+
+    model._set("A1", "=DAY(95051806)");
+    model._set("A2", "=DAY(2958465)");
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"#NUM!");
+    assert_eq!(model._get_text("A2"), *"31");
+}
--- a/base/src/test/test_fn_or.rs
+++ b/base/src/test/test_fn_or.rs
@@ -1,36 +0,0 @@
-#![allow(clippy::unwrap_used)]
-
-use crate::test::util::new_empty_model;
-
-#[test]
-fn fn_or() {
-    let mut model = new_empty_model();
-    model._set("A1", "=OR(1, 0)");
-    model._set("A2", "=OR(0, 0)");
-    model._set("A3", "=OR(true, false)");
-    model._set("A4", "=OR(false, false)");
-
-    model.evaluate();
-    assert_eq!(model._get_text("A1"), *"TRUE");
-    assert_eq!(model._get_text("A2"), *"FALSE");
-    assert_eq!(model._get_text("A3"), *"TRUE");
-    assert_eq!(model._get_text("A4"), *"FALSE");
-}
-
-#[test]
-fn fn_or_no_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=OR()");
-    model.evaluate();
-    assert_eq!(model._get_text("A1"), *"#ERROR!");
-}
-
-#[test]
-fn fn_or_missing_arguments() {
-    let mut model = new_empty_model();
-    model._set("A1", "=OR(,)");
-    model._set("A2", "=OR(,1)");
-    model.evaluate();
-    assert_eq!(model._get_text("A1"), *"FALSE");
-    assert_eq!(model._get_text("A2"), *"TRUE");
-}
--- a/base/src/test/test_fn_or_xor.rs
+++ b/base/src/test/test_fn_or_xor.rs
@@ -0,0 +1,204 @@
+#![allow(clippy::unwrap_used)]
+#![allow(clippy::print_stdout)]
+use crate::test::util::new_empty_model;
+
+// These tests are grouped because in many cases XOR and OR have similar behaviour.
+
+// Test specific to xor
+#[test]
+fn fn_xor() {
+    let mut model = new_empty_model();
+
+    model._set("A1", "=XOR(1, 1, 1, 0, 0)");
+    model._set("A2", "=XOR(1, 1, 0, 0, 0)");
+    model._set("A3", "=XOR(TRUE, TRUE, TRUE, FALSE, FALSE)");
+    model._set("A4", "=XOR(TRUE, TRUE, FALSE, FALSE, FALSE)");
+    model._set("A5", "=XOR(FALSE, FALSE, FALSE, FALSE, FALSE)");
+    model._set("A6", "=XOR(TRUE, TRUE)");
+    model._set("A7", "=XOR(0,0,0)");
+    model._set("A8", "=XOR(0,0,1)");
+    model._set("A9", "=XOR(0,1,0)");
+    model._set("A10", "=XOR(0,1,1)");
+    model._set("A11", "=XOR(1,0,0)");
+    model._set("A12", "=XOR(1,0,1)");
+    model._set("A13", "=XOR(1,1,0)");
+    model._set("A14", "=XOR(1,1,1)");
+
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"TRUE");
+    assert_eq!(model._get_text("A2"), *"FALSE");
+    assert_eq!(model._get_text("A3"), *"TRUE");
+    assert_eq!(model._get_text("A4"), *"FALSE");
+    assert_eq!(model._get_text("A5"), *"FALSE");
+    assert_eq!(model._get_text("A6"), *"FALSE");
+    assert_eq!(model._get_text("A7"), *"FALSE");
+    assert_eq!(model._get_text("A8"), *"TRUE");
+    assert_eq!(model._get_text("A9"), *"TRUE");
+    assert_eq!(model._get_text("A10"), *"FALSE");
+    assert_eq!(model._get_text("A11"), *"TRUE");
+    assert_eq!(model._get_text("A12"), *"FALSE");
+    assert_eq!(model._get_text("A13"), *"FALSE");
+    assert_eq!(model._get_text("A14"), *"TRUE");
+}
+
+#[test]
+fn fn_or() {
+    let mut model = new_empty_model();
+
+    model._set("A1", "=OR(1, 1, 1, 0, 0)");
+    model._set("A2", "=OR(1, 1, 0, 0, 0)");
+    model._set("A3", "=OR(TRUE, TRUE, TRUE, FALSE, FALSE)");
+    model._set("A4", "=OR(TRUE, TRUE, FALSE, FALSE, FALSE)");
+    model._set("A5", "=OR(FALSE, FALSE, FALSE, FALSE, FALSE)");
+    model._set("A6", "=OR(TRUE, TRUE)");
+
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"TRUE");
+    assert_eq!(model._get_text("A2"), *"TRUE");
+    assert_eq!(model._get_text("A3"), *"TRUE");
+    assert_eq!(model._get_text("A4"), *"TRUE");
+    assert_eq!(model._get_text("A5"), *"FALSE");
+    assert_eq!(model._get_text("A6"), *"TRUE");
+}
+
+#[test]
+fn fn_or_xor() {
+    inner("or");
+    inner("xor");
+
+    fn inner(func: &str) {
+        println!("Testing function: {func}");
+
+        let mut model = new_empty_model();
+
+        // Text args
+        model._set("A1", &format!(r#"={func}("")"#));
+        model._set("A2", &format!(r#"={func}("", "")"#));
+        model._set("A3", &format!(r#"={func}("", TRUE)"#));
+        model._set("A4", &format!(r#"={func}("", FALSE)"#));
+
+        model._set("A5", &format!("={func}(FALSE, TRUE)"));
+        model._set("A6", &format!("={func}(FALSE, FALSE)"));
+        model._set("A7", &format!("={func}(TRUE, FALSE)"));
+
+        // Reference to empty cell, plus true argument
+        model._set("A8", &format!("={func}(Z99, 1)"));
+
+        // Reference to empty cell/range
+        model._set("A9", &format!("={func}(Z99)"));
+        model._set("A10", &format!("={func}(X99:Z99"));
+
+        // Reference to cell with reference to empty range
+        model._set("B11", "=X99:Z99");
+        model._set("A11", &format!("={func}(B11)"));
+
+        // Reference to cell with non-empty range
+        model._set("X12", "1");
+        model._set("B12", "=X12:Z12");
+        model._set("A12", &format!("={func}(B12)"));
+
+        // Reference to text cell
+        model._set("B13", "some_text");
+        model._set("A13", &format!("={func}(B13)"));
+        model._set("A14", &format!("={func}(B13, 0)"));
+        model._set("A15", &format!("={func}(B13, 1)"));
+
+        // Reference to Implicit intersection
+        model._set("X16", "1");
+        model._set("B16", "=@X15:X16");
+        model._set("A16", &format!("={func}(B16)"));
+
+        // Non-empty range
+        model._set("B17", "1");
+        model._set("A17", &format!("={func}(B17:C17)"));
+
+        // Non-empty range with text
+        model._set("B18", "text");
+        model._set("A18", &format!("={func}(B18:C18)"));
+
+        // Non-empty range with text and number
+        model._set("B19", "text");
+        model._set("C19", "1");
+        model._set("A19", &format!("={func}(B19:C19)"));
+
+        // range with error
+        model._set("B20", "=1/0");
+        model._set("A20", &format!("={func}(B20:C20)"));
+
+        model.evaluate();
+
+        assert_eq!(model._get_text("A1"), *"#VALUE!");
+        assert_eq!(model._get_text("A2"), *"#VALUE!");
+        assert_eq!(model._get_text("A3"), *"TRUE");
+        assert_eq!(model._get_text("A4"), *"FALSE");
+
+        assert_eq!(model._get_text("A5"), *"TRUE");
+        assert_eq!(model._get_text("A6"), *"FALSE");
+        assert_eq!(model._get_text("A7"), *"TRUE");
+
+        assert_eq!(model._get_text("A8"), *"TRUE");
+
+        assert_eq!(model._get_text("A9"), *"#VALUE!");
+        assert_eq!(model._get_text("A10"), *"#VALUE!");
+
+        assert_eq!(model._get_text("A11"), *"#VALUE!");
+
+        // TODO: This one depends on spill behaviour which isn't implemented yet
+        // assert_eq!(model._get_text("A12"), *"TRUE");
+
+        assert_eq!(model._get_text("A13"), *"#VALUE!");
+        assert_eq!(model._get_text("A14"), *"FALSE");
+        assert_eq!(model._get_text("A15"), *"TRUE");
+
+        // TODO: This one depends on @ implicit intersection behaviour which isn't implemented yet
+        // assert_eq!(model._get_text("A16"), *"TRUE");
+
+        assert_eq!(model._get_text("A17"), *"TRUE");
+
+        assert_eq!(model._get_text("A18"), *"#VALUE!");
+
+        assert_eq!(model._get_text("A19"), *"TRUE");
+
+        assert_eq!(model._get_text("A20"), *"#DIV/0!");
+    }
+}
+
+#[test]
+fn fn_or_xor_no_arguments() {
+    inner("or");
+    inner("xor");
+
+    fn inner(func: &str) {
+        println!("Testing function: {func}");
+
+        let mut model = new_empty_model();
+        model._set("A1", &format!("={}()", func));
+        model.evaluate();
+        assert_eq!(model._get_text("A1"), *"#ERROR!");
+    }
+}
+
+#[test]
+fn fn_or_xor_missing_arguments() {
+    inner("or");
+    inner("xor");
+
+    fn inner(func: &str) {
+        println!("Testing function: {func}");
+
+        let mut model = new_empty_model();
+        model._set("A1", &format!("={func}(,)"));
+        model._set("A2", &format!("={func}(,1)"));
+        model._set("A3", &format!("={func}(1,)"));
+        model._set("A4", &format!("={func}(,B1)"));
+        model._set("A5", &format!("={func}(,B1:B4)"));
+        model.evaluate();
+        assert_eq!(model._get_text("A1"), *"FALSE");
+        assert_eq!(model._get_text("A2"), *"TRUE");
+        assert_eq!(model._get_text("A3"), *"TRUE");
+        assert_eq!(model._get_text("A4"), *"FALSE");
+        assert_eq!(model._get_text("A5"), *"FALSE");
+    }
+}
--- a/base/src/test/test_true_false.rs
+++ b/base/src/test/test_true_false.rs
@@ -0,0 +1,25 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::test::util::new_empty_model;
+
+#[test]
+fn true_false_arguments() {
+    let mut model = new_empty_model();
+    model._set("A1", "=TRUE( )");
+    model._set("A2", "=FALSE( )");
+    model._set("A3", "=TRUE( 4 )");
+    model._set("A4", "=FALSE( 4 )");
+
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"TRUE");
+    assert_eq!(model._get_text("A2"), *"FALSE");
+
+    assert_eq!(model._get_formula("A1"), *"=TRUE()");
+    assert_eq!(model._get_formula("A2"), *"=FALSE()");
+
+    assert_eq!(model._get_text("A3"), *"#ERROR!");
+    assert_eq!(model._get_text("A4"), *"#ERROR!");
+    assert_eq!(model._get_formula("A3"), *"=TRUE(4)");
+    assert_eq!(model._get_formula("A4"), *"=FALSE(4)");
+}
--- a/base/src/test/user_model/mod.rs
+++ b/base/src/test/user_model/mod.rs
@@ -3,6 +3,7 @@ mod test_autofill_columns;
 mod test_autofill_rows;
 mod test_border;
 mod test_clear_cells;
+mod test_defined_names;
 mod test_diff_queue;
 mod test_evaluation;
 mod test_general;
@@ -14,6 +15,7 @@ mod test_on_paste_styles;
 mod test_paste_csv;
 mod test_rename_sheet;
 mod test_row_column;
+mod test_sheet_state;
 mod test_styles;
 mod test_to_from_bytes;
 mod test_undo_redo;
--- a/base/src/test/user_model/test_defined_names.rs
+++ b/base/src/test/user_model/test_defined_names.rs
@@ -0,0 +1,398 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::UserModel;
+
+#[test]
+fn create_defined_name() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "42").unwrap();
+    model
+        .new_defined_name("myName", None, "Sheet1!$A$1")
+        .unwrap();
+    model.set_user_input(0, 5, 7, "=myName").unwrap();
+    assert_eq!(
+        model.get_formatted_cell_value(0, 5, 7),
+        Ok("42".to_string())
+    );
+
+    assert_eq!(
+        model.get_defined_name_list(),
+        vec![("myName".to_string(), None, "Sheet1!$A$1".to_string())]
+    );
+
+    // delete it
+    model.delete_defined_name("myName", None).unwrap();
+    assert_eq!(
+        model.get_formatted_cell_value(0, 5, 7),
+        Ok("#NAME?".to_string())
+    );
+
+    assert_eq!(model.get_defined_name_list().len(), 0);
+
+    model.undo().unwrap();
+    assert_eq!(
+        model.get_formatted_cell_value(0, 5, 7),
+        Ok("42".to_string())
+    );
+}
+
+#[test]
+fn scopes() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "42").unwrap();
+
+    // Global
+    model
+        .new_defined_name("myName", None, "Sheet1!$A$1")
+        .unwrap();
+    model.set_user_input(0, 5, 7, "=myName").unwrap();
+
+    // Local to Sheet2
+    model.new_sheet().unwrap();
+    model.set_user_input(1, 2, 1, "145").unwrap();
+    model
+        .new_defined_name("myName", Some(1), "Sheet2!$A$2")
+        .unwrap();
+    model.set_user_input(1, 8, 8, "=myName").unwrap();
+
+    // Sheet 3
+    model.new_sheet().unwrap();
+    model.set_user_input(2, 2, 2, "=myName").unwrap();
+
+    // Global
+    assert_eq!(
+        model.get_formatted_cell_value(0, 5, 7),
+        Ok("42".to_string())
+    );
+
+    assert_eq!(
+        model.get_formatted_cell_value(1, 8, 8),
+        Ok("145".to_string())
+    );
+
+    assert_eq!(
+        model.get_formatted_cell_value(2, 2, 2),
+        Ok("42".to_string())
+    );
+}
+
+#[test]
+fn delete_sheet() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "Hello").unwrap();
+    model
+        .set_user_input(0, 2, 1, r#"=CONCATENATE(MyName, " world!")"#)
+        .unwrap();
+    model.new_sheet().unwrap();
+    model
+        .new_defined_name("myName", Some(1), "Sheet1!$A$1")
+        .unwrap();
+    model
+        .set_user_input(1, 2, 1, r#"=CONCATENATE(MyName, " my world!")"#)
+        .unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(0, 2, 1),
+        Ok("#NAME?".to_string())
+    );
+
+    assert_eq!(
+        model.get_formatted_cell_value(1, 2, 1),
+        Ok("Hello my world!".to_string())
+    );
+
+    model.delete_sheet(0).unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(0, 2, 1),
+        Ok("#NAME?".to_string())
+    );
+
+    assert_eq!(
+        model.get_cell_content(0, 2, 1),
+        Ok(r#"=CONCATENATE(MyName," my world!")"#.to_string())
+    );
+}
+
+#[test]
+fn change_scope() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "Hello").unwrap();
+    model
+        .set_user_input(0, 2, 1, r#"=CONCATENATE(MyName, " world!")"#)
+        .unwrap();
+    model.new_sheet().unwrap();
+    model
+        .new_defined_name("myName", Some(1), "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(0, 2, 1),
+        Ok("#NAME?".to_string())
+    );
+
+    model
+        .update_defined_name("myName", Some(1), "myName", None, "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(0, 2, 1),
+        Ok("Hello world!".to_string())
+    );
+}
+
+#[test]
+fn rename_defined_name() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "Hello").unwrap();
+    model
+        .set_user_input(0, 2, 1, r#"=CONCATENATE(MyName, " world!")"#)
+        .unwrap();
+    model.new_sheet().unwrap();
+    model
+        .new_defined_name("myName", None, "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(0, 2, 1),
+        Ok("Hello world!".to_string())
+    );
+
+    model
+        .update_defined_name("myName", None, "newName", None, "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(0, 2, 1),
+        Ok("Hello world!".to_string())
+    );
+
+    assert_eq!(
+        model.get_cell_content(0, 2, 1),
+        Ok(r#"=CONCATENATE(newName," world!")"#.to_string())
+    );
+}
+
+#[test]
+fn rename_defined_name_operations() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "42").unwrap();
+    model.set_user_input(0, 1, 2, "123").unwrap();
+
+    model
+        .new_defined_name("answer", None, "Sheet1!$A$1")
+        .unwrap();
+
+    model
+        .set_user_input(0, 2, 1, "=IF(answer<2, answer*2, answer^2)")
+        .unwrap();
+
+    model
+        .set_user_input(0, 3, 1, "=badDunction(-answer)")
+        .unwrap();
+
+    model.new_sheet().unwrap();
+    model.set_user_input(1, 1, 1, "78").unwrap();
+    model
+        .new_defined_name("answer", Some(1), "Sheet1!$A$1")
+        .unwrap();
+
+    model.set_user_input(1, 3, 1, "=answer").unwrap();
+
+    model
+        .update_defined_name("answer", None, "respuesta", None, "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.get_cell_content(0, 2, 1),
+        Ok("=IF(respuesta<2,respuesta*2,respuesta^2)".to_string())
+    );
+
+    assert_eq!(
+        model.get_cell_content(0, 3, 1),
+        Ok("=badDunction(-respuesta)".to_string())
+    );
+
+    // A defined name with the same name but different scope
+    assert_eq!(model.get_cell_content(1, 3, 1), Ok("=answer".to_string()));
+}
+
+#[test]
+fn rename_defined_name_string_operations() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "Hello").unwrap();
+    model.set_user_input(0, 1, 2, "World").unwrap();
+
+    model
+        .new_defined_name("hello", None, "Sheet1!$A$1")
+        .unwrap();
+
+    model
+        .new_defined_name("world", None, "Sheet1!$B$1")
+        .unwrap();
+
+    model.set_user_input(0, 2, 1, "=hello&world").unwrap();
+
+    model
+        .update_defined_name("hello", None, "HolaS", None, "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.get_cell_content(0, 2, 1),
+        Ok("=HolaS&world".to_string())
+    );
+}
+
+#[test]
+fn invalid_names() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "Hello").unwrap();
+    model
+        .new_defined_name("MyName", None, "Sheet1!$A$1")
+        .unwrap();
+
+    // spaces
+    assert_eq!(
+        model.new_defined_name("A real", None, "Sheet1!$A$1"),
+        Err("Invalid defined name".to_string())
+    );
+
+    // Starts with number
+    assert_eq!(
+        model.new_defined_name("2real", None, "Sheet1!$A$1"),
+        Err("Invalid defined name".to_string())
+    );
+
+    // Updating also fails
+    assert_eq!(
+        model.update_defined_name("MyName", None, "My Name", None, "Sheet1!$A$1"),
+        Err("Invalid defined name".to_string())
+    );
+}
+
+#[test]
+fn already_existing() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+
+    model
+        .new_defined_name("MyName", None, "Sheet1!$A$1")
+        .unwrap();
+    model
+        .new_defined_name("Another", None, "Sheet1!$A$1")
+        .unwrap();
+
+    // Can't create a new name with the same name
+    assert_eq!(
+        model.new_defined_name("MyName", None, "Sheet1!$A$2"),
+        Err("Defined name already exists".to_string())
+    );
+
+    // Can't update one into an existing
+    assert_eq!(
+        model.update_defined_name("Another", None, "MyName", None, "Sheet1!$A$1"),
+        Err("Defined name already exists".to_string())
+    );
+}
+
+#[test]
+fn invalid_sheet() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "Hello").unwrap();
+    model
+        .new_defined_name("MyName", None, "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.new_defined_name("Mything", Some(2), "Sheet1!$A$1"),
+        Err("Invalid sheet index".to_string())
+    );
+
+    assert_eq!(
+        model.update_defined_name("MyName", None, "MyName", Some(2), "Sheet1!$A$1"),
+        Err("Invalid sheet index".to_string())
+    );
+
+    assert_eq!(
+        model.update_defined_name("MyName", Some(9), "YourName", None, "Sheet1!$A$1"),
+        Err("Invalid sheet index".to_string())
+    );
+}
+
+#[test]
+fn invalid_formula() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "Hello").unwrap();
+    model.new_defined_name("MyName", None, "A1").unwrap();
+
+    model.set_user_input(0, 1, 2, "=MyName").unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(0, 1, 2),
+        Ok("#NAME?".to_string())
+    );
+}
+
+#[test]
+fn undo_redo() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.set_user_input(0, 1, 1, "Hello").unwrap();
+    model.set_user_input(0, 2, 1, "Hola").unwrap();
+    model.set_user_input(0, 1, 2, r#"=MyName&"!""#).unwrap();
+
+    model
+        .new_defined_name("MyName", None, "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(0, 1, 2),
+        Ok("Hello!".to_string())
+    );
+    model.undo().unwrap();
+    assert_eq!(model.get_defined_name_list().len(), 0);
+    assert_eq!(
+        model.get_formatted_cell_value(0, 1, 2),
+        Ok("#NAME?".to_string())
+    );
+    model.redo().unwrap();
+
+    assert_eq!(model.get_defined_name_list().len(), 1);
+    assert_eq!(
+        model.get_formatted_cell_value(0, 1, 2),
+        Ok("Hello!".to_string())
+    );
+
+    model
+        .update_defined_name("MyName", None, "MyName", None, "Sheet1!$A$2")
+        .unwrap();
+    assert_eq!(model.get_defined_name_list().len(), 1);
+    assert_eq!(
+        model.get_formatted_cell_value(0, 1, 2),
+        Ok("Hola!".to_string())
+    );
+    model.undo().unwrap();
+
+    assert_eq!(model.get_defined_name_list().len(), 1);
+    assert_eq!(
+        model.get_formatted_cell_value(0, 1, 2),
+        Ok("Hello!".to_string())
+    );
+
+    model.redo().unwrap();
+
+    assert_eq!(model.get_defined_name_list().len(), 1);
+    assert_eq!(
+        model.get_formatted_cell_value(0, 1, 2),
+        Ok("Hola!".to_string())
+    );
+
+    let send_queue = model.flush_send_queue();
+
+    let mut model2 = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model2.apply_external_diffs(&send_queue).unwrap();
+
+    assert_eq!(model2.get_defined_name_list().len(), 1);
+    assert_eq!(
+        model2.get_formatted_cell_value(0, 1, 2),
+        Ok("Hola!".to_string())
+    );
+}
--- a/base/src/test/user_model/test_general.rs
+++ b/base/src/test/user_model/test_general.rs
@@ -91,7 +91,6 @@ fn insert_remove_columns() {
    let mut model = UserModel::from_model(model);
    // column E
    let column_width = model.get_column_width(0, 5).unwrap();
-    println!("{column_width}");

    // Insert some data in row 5 (and change the style) in E1
    assert!(model.set_user_input(0, 1, 5, "100$").is_ok());
--- a/base/src/test/user_model/test_sheet_state.rs
+++ b/base/src/test/user_model/test_sheet_state.rs
@@ -0,0 +1,57 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::test::util::new_empty_model;
+use crate::UserModel;
+
+#[test]
+fn basic_tests() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+
+    // add three more sheets
+    model.new_sheet().unwrap();
+    model.new_sheet().unwrap();
+    model.new_sheet().unwrap();
+
+    let info = model.get_worksheets_properties();
+    assert_eq!(info.len(), 4);
+    for sheet in &info {
+        assert_eq!(sheet.state, "visible".to_string());
+    }
+
+    model.set_selected_sheet(2).unwrap();
+    assert_eq!(info.get(2).unwrap().name, "Sheet3".to_string());
+
+    model.hide_sheet(2).unwrap();
+
+    let info = model.get_worksheets_properties();
+    assert_eq!(model.get_selected_sheet(), 3);
+    assert_eq!(info.get(2).unwrap().state, "hidden".to_string());
+
+    model.undo().unwrap();
+    let info = model.get_worksheets_properties();
+    assert_eq!(info.get(2).unwrap().state, "visible".to_string());
+    model.redo().unwrap();
+    let info = model.get_worksheets_properties();
+    assert_eq!(info.get(2).unwrap().state, "hidden".to_string());
+
+    model.set_selected_sheet(3).unwrap();
+    model.hide_sheet(3).unwrap();
+    assert_eq!(model.get_selected_sheet(), 0);
+
+    model.unhide_sheet(2).unwrap();
+    model.unhide_sheet(3).unwrap();
+
+    let info = model.get_worksheets_properties();
+    assert_eq!(info.len(), 4);
+    for sheet in &info {
+        assert_eq!(sheet.state, "visible".to_string());
+    }
+
+    model.undo().unwrap();
+    let info = model.get_worksheets_properties();
+    assert_eq!(info.get(3).unwrap().state, "hidden".to_string());
+    model.redo().unwrap();
+    let info = model.get_worksheets_properties();
+    assert_eq!(info.get(3).unwrap().state, "visible".to_string());
+}
--- a/base/src/units.rs
+++ b/base/src/units.rs
@@ -293,7 +293,9 @@ impl Model {
            Node::EmptyArgKind => None,
            Node::InvalidFunctionKind { .. } => None,
            Node::ArrayKind(_) => None,
-            Node::VariableKind(_) => None,
+            Node::DefinedNameKind(_) => None,
+            Node::TableNameKind(_) => None,
+            Node::WrongVariableKind(_) => None,
            Node::CompareKind { .. } => None,
            Node::OpPowerKind { .. } => None,
        }
--- a/base/src/user_model/common.rs
+++ b/base/src/user_model/common.rs
@@ -13,8 +13,8 @@ use crate::{
    },
    model::Model,
    types::{
-        Alignment, BorderItem, CellType, Col, HorizontalAlignment, SheetProperties, Style,
-        VerticalAlignment,
+        Alignment, BorderItem, CellType, Col, HorizontalAlignment, SheetProperties, SheetState,
+        Style, VerticalAlignment,
    },
    utils::is_valid_hex_color,
 };
@@ -440,6 +440,48 @@ impl UserModel {
        Ok(())
    }

+    /// Hides sheet by index
+    ///
+    /// See also:
+    /// * [Model::set_sheet_state]
+    /// * [UserModel::unhide_sheet]
+    pub fn hide_sheet(&mut self, sheet: u32) -> Result<(), String> {
+        let sheet_count = self.model.workbook.worksheets.len() as u32;
+        for index in 1..sheet_count {
+            let sheet_index = (sheet + index) % sheet_count;
+            if self.model.workbook.worksheet(sheet_index)?.state == SheetState::Visible {
+                if let Some(view) = self.model.workbook.views.get_mut(&self.model.view_id) {
+                    view.sheet = sheet_index;
+                };
+                break;
+            }
+        }
+        let old_value = self.model.workbook.worksheet(sheet)?.state.clone();
+        self.push_diff_list(vec![Diff::SetSheetState {
+            index: sheet,
+            new_value: SheetState::Hidden,
+            old_value,
+        }]);
+        self.model.set_sheet_state(sheet, SheetState::Hidden)?;
+        Ok(())
+    }
+
+    /// Un hides sheet by index
+    ///
+    /// See also:
+    /// * [Model::set_sheet_state]
+    /// * [UserModel::hide_sheet]
+    pub fn unhide_sheet(&mut self, sheet: u32) -> Result<(), String> {
+        let old_value = self.model.workbook.worksheet(sheet)?.state.clone();
+        self.push_diff_list(vec![Diff::SetSheetState {
+            index: sheet,
+            new_value: SheetState::Visible,
+            old_value,
+        }]);
+        self.model.set_sheet_state(sheet, SheetState::Visible)?;
+        Ok(())
+    }
+
    /// Sets sheet color
    ///
    /// Note: an empty string will remove the color
@@ -1692,6 +1734,68 @@ impl UserModel {
        Ok(())
    }

+    /// Returns the list of defined names
+    pub fn get_defined_name_list(&self) -> Vec<(String, Option<u32>, String)> {
+        self.model.workbook.get_defined_names_with_scope()
+    }
+
+    /// Delete an existing defined name
+    pub fn delete_defined_name(&mut self, name: &str, scope: Option<u32>) -> Result<(), String> {
+        let old_value = self.model.get_defined_name_formula(name, scope)?;
+        let diff_list = vec![Diff::DeleteDefinedName {
+            name: name.to_string(),
+            scope,
+            old_value,
+        }];
+        self.push_diff_list(diff_list);
+        self.model.delete_defined_name(name, scope)?;
+        self.evaluate_if_not_paused();
+        Ok(())
+    }
+
+    /// Create a new defined name
+    pub fn new_defined_name(
+        &mut self,
+        name: &str,
+        scope: Option<u32>,
+        formula: &str,
+    ) -> Result<(), String> {
+        self.model.new_defined_name(name, scope, formula)?;
+        let diff_list = vec![Diff::CreateDefinedName {
+            name: name.to_string(),
+            scope,
+            value: formula.to_string(),
+        }];
+        self.push_diff_list(diff_list);
+        self.evaluate_if_not_paused();
+        Ok(())
+    }
+
+    /// Updates a defined name
+    pub fn update_defined_name(
+        &mut self,
+        name: &str,
+        scope: Option<u32>,
+        new_name: &str,
+        new_scope: Option<u32>,
+        new_formula: &str,
+    ) -> Result<(), String> {
+        let old_formula = self.model.get_defined_name_formula(name, scope)?;
+        let diff_list = vec![Diff::UpdateDefinedName {
+            name: name.to_string(),
+            scope,
+            old_formula: old_formula.to_string(),
+            new_name: new_name.to_string(),
+            new_scope,
+            new_formula: new_formula.to_string(),
+        }];
+        self.push_diff_list(diff_list);
+        self.model
+            .update_defined_name(name, scope, new_name, new_scope, new_formula)?;
+        self.evaluate_if_not_paused();
+        Ok(())
+    }
+
    // **** Private methods ****** //

    fn push_diff_list(&mut self, diff_list: DiffList) {
@@ -1862,6 +1966,41 @@ impl UserModel {
                } => {
                    self.model.set_show_grid_lines(*sheet, *old_value)?;
                }
+                Diff::CreateDefinedName {
+                    name,
+                    scope,
+                    value: _,
+                } => {
+                    self.model.delete_defined_name(name, *scope)?;
+                }
+                Diff::DeleteDefinedName {
+                    name,
+                    scope,
+                    old_value,
+                } => {
+                    self.model.new_defined_name(name, *scope, old_value)?;
+                }
+                Diff::UpdateDefinedName {
+                    name,
+                    scope,
+                    old_formula,
+                    new_name,
+                    new_scope,
+                    new_formula: _,
+                } => {
+                    self.model.update_defined_name(
+                        new_name,
+                        *new_scope,
+                        name,
+                        *scope,
+                        old_formula,
+                    )?;
+                }
+                Diff::SetSheetState {
+                    index,
+                    old_value,
+                    new_value: _,
+                } => self.model.set_sheet_state(*index, old_value.clone())?,
            }
        }
        if needs_evaluation {
@@ -1989,6 +2128,33 @@ impl UserModel {
                } => {
                    self.model.set_show_grid_lines(*sheet, *new_value)?;
                }
+                Diff::CreateDefinedName { name, scope, value } => {
+                    self.model.new_defined_name(name, *scope, value)?
+                }
+                Diff::DeleteDefinedName {
+                    name,
+                    scope,
+                    old_value: _,
+                } => self.model.delete_defined_name(name, *scope)?,
+                Diff::UpdateDefinedName {
+                    name,
+                    scope,
+                    old_formula: _,
+                    new_name,
+                    new_scope,
+                    new_formula,
+                } => self.model.update_defined_name(
+                    name,
+                    *scope,
+                    new_name,
+                    *new_scope,
+                    new_formula,
+                )?,
+                Diff::SetSheetState {
+                    index,
+                    old_value: _,
+                    new_value,
+                } => self.model.set_sheet_state(*index, new_value.clone())?,
            }
        }

--- a/base/src/user_model/history.rs
+++ b/base/src/user_model/history.rs
@@ -2,7 +2,7 @@ use std::collections::HashMap;

 use bitcode::{Decode, Encode};

-use crate::types::{Cell, Col, Row, Style};
+use crate::types::{Cell, Col, Row, SheetState, Style};

 #[derive(Clone, Encode, Decode)]
 pub(crate) struct RowData {
@@ -104,11 +104,35 @@ pub(crate) enum Diff {
        old_value: String,
        new_value: String,
    },
+    SetSheetState {
+        index: u32,
+        old_value: SheetState,
+        new_value: SheetState,
+    },
    SetShowGridLines {
        sheet: u32,
        old_value: bool,
        new_value: bool,
-    }, // FIXME: we are missing SetViewDiffs
+    },
+    CreateDefinedName {
+        name: String,
+        scope: Option<u32>,
+        value: String,
+    },
+    DeleteDefinedName {
+        name: String,
+        scope: Option<u32>,
+        old_value: String,
+    },
+    UpdateDefinedName {
+        name: String,
+        scope: Option<u32>,
+        old_formula: String,
+        new_name: String,
+        new_scope: Option<u32>,
+        new_formula: String,
+    },
+    // FIXME: we are missing SetViewDiffs
 }

 pub(crate) type DiffList = Vec<Diff>;
--- a/base/src/workbook.rs
+++ b/base/src/workbook.rs
@@ -27,4 +27,27 @@ impl Workbook {
            .get_mut(worksheet_index as usize)
            .ok_or_else(|| "Invalid sheet index".to_string())
    }
+
+    /// Returns the a list of defined names in the workbook with their scope
+    pub fn get_defined_names_with_scope(&self) -> Vec<(String, Option<u32>, String)> {
+        let sheet_id_index: Vec<u32> = self.worksheets.iter().map(|s| s.sheet_id).collect();
+
+        let defined_names = self
+            .defined_names
+            .iter()
+            .map(|dn| {
+                let index = dn
+                    .sheet_id
+                    .and_then(|sheet_id| {
+                        // returns an Option<usize>
+                        sheet_id_index.iter().position(|&x| x == sheet_id)
+                    })
+                    // convert Option<usize> to Option<u32>
+                    .map(|pos| pos as u32);
+
+                (dn.name.clone(), index, dn.formula.clone())
+            })
+            .collect::<Vec<_>>();
+        defined_names
+    }
 }
--- a/bindings/nodejs/.cargo/config.toml
+++ b/bindings/nodejs/.cargo/config.toml
@@ -0,0 +1,5 @@
+[target.aarch64-unknown-linux-musl]
+linker = "aarch64-linux-musl-gcc"
+rustflags = ["-C", "target-feature=-crt-static"]
+[target.x86_64-pc-windows-msvc]
+rustflags = ["-C", "target-feature=+crt-static"]
--- a/bindings/nodejs/.gitignore
+++ b/bindings/nodejs/.gitignore
@@ -0,0 +1,197 @@
+# Created by https://www.toptal.com/developers/gitignore/api/node
+# Edit at https://www.toptal.com/developers/gitignore?templates=node
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# Next.js build output
+.next
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# End of https://www.toptal.com/developers/gitignore/api/node
+
+# Created by https://www.toptal.com/developers/gitignore/api/macos
+# Edit at https://www.toptal.com/developers/gitignore?templates=macos
+
+### macOS ###
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two 
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### macOS Patch ###
+# iCloud generated files
+*.icloud
+
+# End of https://www.toptal.com/developers/gitignore/api/macos
+
+# Created by https://www.toptal.com/developers/gitignore/api/windows
+# Edit at https://www.toptal.com/developers/gitignore?templates=windows
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# End of https://www.toptal.com/developers/gitignore/api/windows
+
+#Added by cargo
+
+/target
+Cargo.lock
+
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions
+
+*.node
--- a/bindings/nodejs/.npmignore
+++ b/bindings/nodejs/.npmignore
@@ -0,0 +1,13 @@
+target
+Cargo.lock
+.cargo
+.github
+npm
+.eslintrc
+.prettierignore
+rustfmt.toml
+yarn.lock
+*.node
+.yarn
+__test__
+renovate.json
--- a/bindings/nodejs/.yarnrc.yml
+++ b/bindings/nodejs/.yarnrc.yml
@@ -0,0 +1 @@
+nodeLinker: node-modules
--- a/bindings/nodejs/Cargo.toml
+++ b/bindings/nodejs/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+edition = "2021"
+name = "ironcalc_nodejs"
+version = "0.3.1"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+# Default enable napi4 feature, see https://nodejs.org/api/n-api.html#node-api-version-matrix
+napi = { version = "2.12.2", default-features = false, features = ["napi4", "serde-json"] }
+napi-derive = "2.12.2"
+ironcalc = { path = "../../xlsx", version = "0.3.0" }
+serde = { version = "1.0", features = ["derive"] }
+
+[build-dependencies]
+napi-build = "2.0.1"
+
--- a/bindings/nodejs/README.md
+++ b/bindings/nodejs/README.md
@@ -0,0 +1,18 @@
+# IronCalc nodejs bindingds
+
+
+Example usage:
+
+```javascript
+import { Model } from '@ironcalc/wasm';
+ 
+const model = new Model("Workbook1", "en", "UTC");
+
+model.setUserInput(0, 1, 1, "=1+1");
+const result1 = model.getFormattedCellValue(0, 1, 1);
+
+console.log('Cell value', result1);
+
+let result2 = model.getCellStyle(0, 1, 1);
+console.log('Cell style', result2);
+```
--- a/bindings/nodejs/test/index.spec.mjs
+++ b/bindings/nodejs/test/index.spec.mjs
@@ -0,0 +1,20 @@
+import test from 'ava'
+
+import { UserModel, Model } from '../index.js';
+ 
+test('User Model smoke test', (t) => {
+  const model = new UserModel("Workbook1", "en", "UTC");
+
+  model.setUserInput(0, 1, 1, "=1+1");
+  t.is(model.getFormattedCellValue(0, 1, 1), '2');
+});
+
+
+test('Raw API smoke test', (t) => {
+  const model = new Model("Workbook1", "en", "UTC");
+
+  model.setUserInput(0, 1, 1, "=1+1");
+  model.evaluate();
+  t.is(model.getFormattedCellValue(0, 1, 1), '2');
+});
+
--- a/bindings/nodejs/build.rs
+++ b/bindings/nodejs/build.rs
@@ -0,0 +1,5 @@
+extern crate napi_build;
+
+fn main() {
+  napi_build::setup();
+}
--- a/bindings/nodejs/example.xlsx
+++ b/bindings/nodejs/example.xlsx
--- a/bindings/nodejs/index.d.ts
+++ b/bindings/nodejs/index.d.ts
@@ -0,0 +1,115 @@
+/* tslint:disable */
+/* eslint-disable */
+
+/* auto-generated by NAPI-RS */
+
+export declare class Model {
+  constructor(name: string, locale: string, timezone: string)
+  static fromXlsx(filePath: string, locale: string, tz: string): Model
+  static fromIcalc(fileName: string): Model
+  saveToXlsx(file: string): void
+  saveToIcalc(file: string): void
+  evaluate(): void
+  setUserInput(sheet: number, row: number, column: number, value: string): void
+  clearCellContents(sheet: number, row: number, column: number): void
+  getCellContent(sheet: number, row: number, column: number): string
+  getCellType(sheet: number, row: number, column: number): number
+  getFormattedCellValue(sheet: number, row: number, column: number): string
+  setCellStyle(sheet: number, row: number, column: number, style: unknown): void
+  getCellStyle(sheet: number, row: number, column: number): unknown
+  insertRows(sheet: number, row: number, rowCount: number): void
+  insertColumns(sheet: number, column: number, columnCount: number): void
+  deleteRows(sheet: number, row: number, rowCount: number): void
+  deleteColumns(sheet: number, column: number, columnCount: number): void
+  getColumnWidth(sheet: number, column: number): number
+  getRowHeight(sheet: number, row: number): number
+  setColumnWidth(sheet: number, column: number, width: number): void
+  setRowHeight(sheet: number, row: number, height: number): void
+  getFrozenColumnsCount(sheet: number): number
+  getFrozenRowsCount(sheet: number): number
+  setFrozenColumnsCount(sheet: number, columnCount: number): void
+  setFrozenRowsCount(sheet: number, rowCount: number): void
+  getWorksheetsProperties(): unknown
+  setSheetColor(sheet: number, color: string): void
+  addSheet(sheetName: string): void
+  newSheet(): void
+  deleteSheet(sheet: number): void
+  renameSheet(sheet: number, newName: string): void
+  getDefinedNameList(): unknown
+  newDefinedName(name: string, scope: number | undefined | null, formula: string): void
+  updateDefinedName(name: string, scope: number | undefined | null, newName: string, newScope: number | undefined | null, newFormula: string): void
+  deleteDefinedName(name: string, scope?: number | undefined | null): void
+  testPanic(): void
+}
+export declare class UserModel {
+  constructor(name: string, locale: string, timezone: string)
+  static fromBytes(bytes: Uint8Array): UserModel
+  canUndo(): boolean
+  canRedo(): boolean
+  pauseEvaluation(): void
+  resumeEvaluation(): void
+  flushSendQueue(): Array<number>
+  applyExternalDiffs(diffs: Uint8Array): void
+  getCellContent(sheet: number, row: number, column: number): string
+  newSheet(): void
+  deleteSheet(sheet: number): void
+  hideSheet(sheet: number): void
+  unhideSheet(sheet: number): void
+  renameSheet(sheet: number, name: string): void
+  setSheetColor(sheet: number, color: string): void
+  rangeClearAll(sheet: number, startRow: number, startColumn: number, endRow: number, endColumn: number): void
+  rangeClearContents(sheet: number, startRow: number, startColumn: number, endRow: number, endColumn: number): void
+  insertRow(sheet: number, row: number): void
+  insertColumn(sheet: number, column: number): void
+  deleteRow(sheet: number, row: number): void
+  deleteColumn(sheet: number, column: number): void
+  setRowHeight(sheet: number, row: number, height: number): void
+  setColumnWidth(sheet: number, column: number, width: number): void
+  getRowHeight(sheet: number, row: number): number
+  getColumnWidth(sheet: number, column: number): number
+  setUserInput(sheet: number, row: number, column: number, input: string): void
+  getFormattedCellValue(sheet: number, row: number, column: number): string
+  getFrozenRowsCount(sheet: number): number
+  getFrozenColumnsCount(sheet: number): number
+  setFrozenRowsCount(sheet: number, count: number): void
+  setFrozenColumnsCount(sheet: number, count: number): void
+  updateRangeStyle(range: unknown, stylePath: string, value: string): void
+  getCellStyle(sheet: number, row: number, column: number): unknown
+  onPasteStyles(styles: unknown): void
+  getCellType(sheet: number, row: number, column: number): number
+  getWorksheetsProperties(): unknown
+  getSelectedSheet(): number
+  getSelectedCell(): Array<number>
+  getSelectedView(): unknown
+  setSelectedSheet(sheet: number): void
+  setSelectedCell(row: number, column: number): void
+  setSelectedRange(startRow: number, startColumn: number, endRow: number, endColumn: number): void
+  setTopLeftVisibleCell(topRow: number, topColumn: number): void
+  setShowGridLines(sheet: number, showGridLines: boolean): void
+  getShowGridLines(sheet: number): boolean
+  autoFillRows(sourceArea: unknown, toRow: number): void
+  autoFillColumns(sourceArea: unknown, toColumn: number): void
+  onArrowRight(): void
+  onArrowLeft(): void
+  onArrowUp(): void
+  onArrowDown(): void
+  onPageDown(): void
+  onPageUp(): void
+  setWindowWidth(windowWidth: number): void
+  setWindowHeight(windowHeight: number): void
+  getScrollX(): number
+  getScrollY(): number
+  onExpandSelectedRange(key: string): void
+  onAreaSelecting(targetRow: number, targetColumn: number): void
+  setAreaWithBorder(area: unknown, borderArea: unknown): void
+  toBytes(): Array<number>
+  getName(): string
+  setName(name: string): void
+  copyToClipboard(): unknown
+  pasteFromClipboard(sourceSheet: number, sourceRange: unknown, clipboard: unknown, isCut: boolean): void
+  pasteCsvText(area: unknown, csv: string): void
+  getDefinedNameList(): unknown
+  newDefinedName(name: string, scope: number | undefined | null, formula: string): void
+  updateDefinedName(name: string, scope: number | undefined | null, newName: string, newScope: number | undefined | null, newFormula: string): void
+  deleteDefinedName(name: string, scope?: number | undefined | null): void
+}
--- a/bindings/nodejs/index.js
+++ b/bindings/nodejs/index.js
@@ -0,0 +1,316 @@
+/* tslint:disable */
+/* eslint-disable */
+/* prettier-ignore */
+
+/* auto-generated by NAPI-RS */
+
+const { existsSync, readFileSync } = require('fs')
+const { join } = require('path')
+
+const { platform, arch } = process
+
+let nativeBinding = null
+let localFileExisted = false
+let loadError = null
+
+function isMusl() {
+  // For Node 10
+  if (!process.report || typeof process.report.getReport !== 'function') {
+    try {
+      const lddPath = require('child_process').execSync('which ldd').toString().trim()
+      return readFileSync(lddPath, 'utf8').includes('musl')
+    } catch (e) {
+      return true
+    }
+  } else {
+    const { glibcVersionRuntime } = process.report.getReport().header
+    return !glibcVersionRuntime
+  }
+}
+
+switch (platform) {
+  case 'android':
+    switch (arch) {
+      case 'arm64':
+        localFileExisted = existsSync(join(__dirname, 'nodejs.android-arm64.node'))
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./nodejs.android-arm64.node')
+          } else {
+            nativeBinding = require('@ironcalc/nodejs-android-arm64')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
+      case 'arm':
+        localFileExisted = existsSync(join(__dirname, 'nodejs.android-arm-eabi.node'))
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./nodejs.android-arm-eabi.node')
+          } else {
+            nativeBinding = require('@ironcalc/nodejs-android-arm-eabi')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
+      default:
+        throw new Error(`Unsupported architecture on Android ${arch}`)
+    }
+    break
+  case 'win32':
+    switch (arch) {
+      case 'x64':
+        localFileExisted = existsSync(
+          join(__dirname, 'nodejs.win32-x64-msvc.node')
+        )
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./nodejs.win32-x64-msvc.node')
+          } else {
+            nativeBinding = require('@ironcalc/nodejs-win32-x64-msvc')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
+      case 'ia32':
+        localFileExisted = existsSync(
+          join(__dirname, 'nodejs.win32-ia32-msvc.node')
+        )
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./nodejs.win32-ia32-msvc.node')
+          } else {
+            nativeBinding = require('@ironcalc/nodejs-win32-ia32-msvc')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
+      case 'arm64':
+        localFileExisted = existsSync(
+          join(__dirname, 'nodejs.win32-arm64-msvc.node')
+        )
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./nodejs.win32-arm64-msvc.node')
+          } else {
+            nativeBinding = require('@ironcalc/nodejs-win32-arm64-msvc')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
+      default:
+        throw new Error(`Unsupported architecture on Windows: ${arch}`)
+    }
+    break
+  case 'darwin':
+    localFileExisted = existsSync(join(__dirname, 'nodejs.darwin-universal.node'))
+    try {
+      if (localFileExisted) {
+        nativeBinding = require('./nodejs.darwin-universal.node')
+      } else {
+        nativeBinding = require('@ironcalc/nodejs-darwin-universal')
+      }
+      break
+    } catch {}
+    switch (arch) {
+      case 'x64':
+        localFileExisted = existsSync(join(__dirname, 'nodejs.darwin-x64.node'))
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./nodejs.darwin-x64.node')
+          } else {
+            nativeBinding = require('@ironcalc/nodejs-darwin-x64')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
+      case 'arm64':
+        localFileExisted = existsSync(
+          join(__dirname, 'nodejs.darwin-arm64.node')
+        )
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./nodejs.darwin-arm64.node')
+          } else {
+            nativeBinding = require('@ironcalc/nodejs-darwin-arm64')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
+      default:
+        throw new Error(`Unsupported architecture on macOS: ${arch}`)
+    }
+    break
+  case 'freebsd':
+    if (arch !== 'x64') {
+      throw new Error(`Unsupported architecture on FreeBSD: ${arch}`)
+    }
+    localFileExisted = existsSync(join(__dirname, 'nodejs.freebsd-x64.node'))
+    try {
+      if (localFileExisted) {
+        nativeBinding = require('./nodejs.freebsd-x64.node')
+      } else {
+        nativeBinding = require('@ironcalc/nodejs-freebsd-x64')
+      }
+    } catch (e) {
+      loadError = e
+    }
+    break
+  case 'linux':
+    switch (arch) {
+      case 'x64':
+        if (isMusl()) {
+          localFileExisted = existsSync(
+            join(__dirname, 'nodejs.linux-x64-musl.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./nodejs.linux-x64-musl.node')
+            } else {
+              nativeBinding = require('@ironcalc/nodejs-linux-x64-musl')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        } else {
+          localFileExisted = existsSync(
+            join(__dirname, 'nodejs.linux-x64-gnu.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./nodejs.linux-x64-gnu.node')
+            } else {
+              nativeBinding = require('@ironcalc/nodejs-linux-x64-gnu')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        }
+        break
+      case 'arm64':
+        if (isMusl()) {
+          localFileExisted = existsSync(
+            join(__dirname, 'nodejs.linux-arm64-musl.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./nodejs.linux-arm64-musl.node')
+            } else {
+              nativeBinding = require('@ironcalc/nodejs-linux-arm64-musl')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        } else {
+          localFileExisted = existsSync(
+            join(__dirname, 'nodejs.linux-arm64-gnu.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./nodejs.linux-arm64-gnu.node')
+            } else {
+              nativeBinding = require('@ironcalc/nodejs-linux-arm64-gnu')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        }
+        break
+      case 'arm':
+        if (isMusl()) {
+          localFileExisted = existsSync(
+            join(__dirname, 'nodejs.linux-arm-musleabihf.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./nodejs.linux-arm-musleabihf.node')
+            } else {
+              nativeBinding = require('@ironcalc/nodejs-linux-arm-musleabihf')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        } else {
+          localFileExisted = existsSync(
+            join(__dirname, 'nodejs.linux-arm-gnueabihf.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./nodejs.linux-arm-gnueabihf.node')
+            } else {
+              nativeBinding = require('@ironcalc/nodejs-linux-arm-gnueabihf')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        }
+        break
+      case 'riscv64':
+        if (isMusl()) {
+          localFileExisted = existsSync(
+            join(__dirname, 'nodejs.linux-riscv64-musl.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./nodejs.linux-riscv64-musl.node')
+            } else {
+              nativeBinding = require('@ironcalc/nodejs-linux-riscv64-musl')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        } else {
+          localFileExisted = existsSync(
+            join(__dirname, 'nodejs.linux-riscv64-gnu.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./nodejs.linux-riscv64-gnu.node')
+            } else {
+              nativeBinding = require('@ironcalc/nodejs-linux-riscv64-gnu')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        }
+        break
+      case 's390x':
+        localFileExisted = existsSync(
+          join(__dirname, 'nodejs.linux-s390x-gnu.node')
+        )
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./nodejs.linux-s390x-gnu.node')
+          } else {
+            nativeBinding = require('@ironcalc/nodejs-linux-s390x-gnu')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
+      default:
+        throw new Error(`Unsupported architecture on Linux: ${arch}`)
+    }
+    break
+  default:
+    throw new Error(`Unsupported OS: ${platform}, architecture: ${arch}`)
+}
+
+if (!nativeBinding) {
+  if (loadError) {
+    throw loadError
+  }
+  throw new Error(`Failed to load native binding`)
+}
+
+const { Model, UserModel } = nativeBinding
+
+module.exports.Model = Model
+module.exports.UserModel = UserModel
--- a/bindings/nodejs/main.mjs
+++ b/bindings/nodejs/main.mjs
@@ -0,0 +1,28 @@
+import { UserModel, Model } from './index.js'
+
+
+function testUserModel() {
+    const model = new UserModel("Workbook1", "en", "UTC");
+
+    model.setUserInput(0, 1, 1, "=1+1");
+    let t = model.getFormattedCellValue(0, 1, 1);
+
+    console.log('From native', t);
+
+    let t2 = model.getCellStyle(0, 1, 1);
+    console.log('From native', t2);
+}
+
+function testModel() {
+    const model = Model.fromXlsx("example.xlsx", "en", "UTC");
+    const style = model.getCellStyle(0, 1, 6);
+    console.log(style);
+
+    const quantum = model.getFormattedCellValue(0, 14, 4);
+    console.log(quantum);
+    
+}
+
+
+testUserModel();
+testModel();
--- a/bindings/nodejs/npm/android-arm-eabi/README.md
+++ b/bindings/nodejs/npm/android-arm-eabi/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-android-arm-eabi`
+
+This is the **armv7-linux-androideabi** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/android-arm-eabi/package.json
+++ b/bindings/nodejs/npm/android-arm-eabi/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "@ironcalc/nodejs-android-arm-eabi",
+  "version": "0.2.0",
+  "os": [
+    "android"
+  ],
+  "cpu": [
+    "arm"
+  ],
+  "main": "nodejs.android-arm-eabi.node",
+  "files": [
+    "nodejs.android-arm-eabi.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  }
+}
--- a/bindings/nodejs/npm/android-arm64/README.md
+++ b/bindings/nodejs/npm/android-arm64/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-android-arm64`
+
+This is the **aarch64-linux-android** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/android-arm64/package.json
+++ b/bindings/nodejs/npm/android-arm64/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "@ironcalc/nodejs-android-arm64",
+  "version": "0.2.0",
+  "os": [
+    "android"
+  ],
+  "cpu": [
+    "arm64"
+  ],
+  "main": "nodejs.android-arm64.node",
+  "files": [
+    "nodejs.android-arm64.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  }
+}
--- a/bindings/nodejs/npm/darwin-arm64/README.md
+++ b/bindings/nodejs/npm/darwin-arm64/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-darwin-arm64`
+
+This is the **aarch64-apple-darwin** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/darwin-arm64/package.json
+++ b/bindings/nodejs/npm/darwin-arm64/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "@ironcalc/nodejs-darwin-arm64",
+  "version": "0.2.0",
+  "os": [
+    "darwin"
+  ],
+  "cpu": [
+    "arm64"
+  ],
+  "main": "nodejs.darwin-arm64.node",
+  "files": [
+    "nodejs.darwin-arm64.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  }
+}
--- a/bindings/nodejs/npm/darwin-universal/README.md
+++ b/bindings/nodejs/npm/darwin-universal/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-darwin-universal`
+
+This is the **universal-apple-darwin** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/darwin-universal/package.json
+++ b/bindings/nodejs/npm/darwin-universal/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "@ironcalc/nodejs-darwin-universal",
+  "version": "0.2.0",
+  "os": [
+    "darwin"
+  ],
+  "main": "nodejs.darwin-universal.node",
+  "files": [
+    "nodejs.darwin-universal.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  }
+}
--- a/bindings/nodejs/npm/darwin-x64/README.md
+++ b/bindings/nodejs/npm/darwin-x64/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-darwin-x64`
+
+This is the **x86_64-apple-darwin** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/darwin-x64/package.json
+++ b/bindings/nodejs/npm/darwin-x64/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "@ironcalc/nodejs-darwin-x64",
+  "version": "0.2.0",
+  "os": [
+    "darwin"
+  ],
+  "cpu": [
+    "x64"
+  ],
+  "main": "nodejs.darwin-x64.node",
+  "files": [
+    "nodejs.darwin-x64.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  }
+}
--- a/bindings/nodejs/npm/linux-arm-gnueabihf/README.md
+++ b/bindings/nodejs/npm/linux-arm-gnueabihf/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-linux-arm-gnueabihf`
+
+This is the **armv7-unknown-linux-gnueabihf** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/linux-arm-gnueabihf/package.json
+++ b/bindings/nodejs/npm/linux-arm-gnueabihf/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "@ironcalc/nodejs-linux-arm-gnueabihf",
+  "version": "0.2.0",
+  "os": [
+    "linux"
+  ],
+  "cpu": [
+    "arm"
+  ],
+  "main": "nodejs.linux-arm-gnueabihf.node",
+  "files": [
+    "nodejs.linux-arm-gnueabihf.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  }
+}
--- a/bindings/nodejs/npm/linux-arm-musleabihf/README.md
+++ b/bindings/nodejs/npm/linux-arm-musleabihf/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-linux-arm-musleabihf`
+
+This is the **armv7-unknown-linux-musleabihf** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/linux-arm-musleabihf/package.json
+++ b/bindings/nodejs/npm/linux-arm-musleabihf/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "@ironcalc/nodejs-linux-arm-musleabihf",
+  "version": "0.2.0",
+  "os": [
+    "linux"
+  ],
+  "cpu": [
+    "arm"
+  ],
+  "main": "nodejs.linux-arm-musleabihf.node",
+  "files": [
+    "nodejs.linux-arm-musleabihf.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  }
+}
--- a/bindings/nodejs/npm/linux-arm64-gnu/README.md
+++ b/bindings/nodejs/npm/linux-arm64-gnu/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-linux-arm64-gnu`
+
+This is the **aarch64-unknown-linux-gnu** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/linux-arm64-gnu/package.json
+++ b/bindings/nodejs/npm/linux-arm64-gnu/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "@ironcalc/nodejs-linux-arm64-gnu",
+  "version": "0.2.0",
+  "os": [
+    "linux"
+  ],
+  "cpu": [
+    "arm64"
+  ],
+  "main": "nodejs.linux-arm64-gnu.node",
+  "files": [
+    "nodejs.linux-arm64-gnu.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  },
+  "libc": [
+    "glibc"
+  ]
+}
--- a/bindings/nodejs/npm/linux-arm64-musl/README.md
+++ b/bindings/nodejs/npm/linux-arm64-musl/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-linux-arm64-musl`
+
+This is the **aarch64-unknown-linux-musl** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/linux-arm64-musl/package.json
+++ b/bindings/nodejs/npm/linux-arm64-musl/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "@ironcalc/nodejs-linux-arm64-musl",
+  "version": "0.2.0",
+  "os": [
+    "linux"
+  ],
+  "cpu": [
+    "arm64"
+  ],
+  "main": "nodejs.linux-arm64-musl.node",
+  "files": [
+    "nodejs.linux-arm64-musl.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  },
+  "libc": [
+    "musl"
+  ]
+}
--- a/bindings/nodejs/npm/linux-riscv64-gnu/README.md
+++ b/bindings/nodejs/npm/linux-riscv64-gnu/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-linux-riscv64-gnu`
+
+This is the **riscv64gc-unknown-linux-gnu** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/linux-riscv64-gnu/package.json
+++ b/bindings/nodejs/npm/linux-riscv64-gnu/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "@ironcalc/nodejs-linux-riscv64-gnu",
+  "version": "0.2.0",
+  "os": [
+    "linux"
+  ],
+  "cpu": [
+    "riscv64"
+  ],
+  "main": "nodejs.linux-riscv64-gnu.node",
+  "files": [
+    "nodejs.linux-riscv64-gnu.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  },
+  "libc": [
+    "glibc"
+  ]
+}
--- a/bindings/nodejs/npm/linux-x64-gnu/README.md
+++ b/bindings/nodejs/npm/linux-x64-gnu/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-linux-x64-gnu`
+
+This is the **x86_64-unknown-linux-gnu** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/linux-x64-gnu/package.json
+++ b/bindings/nodejs/npm/linux-x64-gnu/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "@ironcalc/nodejs-linux-x64-gnu",
+  "version": "0.2.0",
+  "os": [
+    "linux"
+  ],
+  "cpu": [
+    "x64"
+  ],
+  "main": "nodejs.linux-x64-gnu.node",
+  "files": [
+    "nodejs.linux-x64-gnu.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  },
+  "libc": [
+    "glibc"
+  ]
+}
--- a/bindings/nodejs/npm/linux-x64-musl/README.md
+++ b/bindings/nodejs/npm/linux-x64-musl/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-linux-x64-musl`
+
+This is the **x86_64-unknown-linux-musl** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/linux-x64-musl/package.json
+++ b/bindings/nodejs/npm/linux-x64-musl/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "@ironcalc/nodejs-linux-x64-musl",
+  "version": "0.2.0",
+  "os": [
+    "linux"
+  ],
+  "cpu": [
+    "x64"
+  ],
+  "main": "nodejs.linux-x64-musl.node",
+  "files": [
+    "nodejs.linux-x64-musl.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  },
+  "libc": [
+    "musl"
+  ]
+}
--- a/bindings/nodejs/npm/win32-arm64-msvc/README.md
+++ b/bindings/nodejs/npm/win32-arm64-msvc/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-win32-arm64-msvc`
+
+This is the **aarch64-pc-windows-msvc** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/win32-arm64-msvc/package.json
+++ b/bindings/nodejs/npm/win32-arm64-msvc/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "@ironcalc/nodejs-win32-arm64-msvc",
+  "version": "0.2.0",
+  "os": [
+    "win32"
+  ],
+  "cpu": [
+    "arm64"
+  ],
+  "main": "nodejs.win32-arm64-msvc.node",
+  "files": [
+    "nodejs.win32-arm64-msvc.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  }
+}
--- a/bindings/nodejs/npm/win32-x64-msvc/README.md
+++ b/bindings/nodejs/npm/win32-x64-msvc/README.md
@@ -0,0 +1,3 @@
+# `@ironcalc/nodejs-win32-x64-msvc`
+
+This is the **x86_64-pc-windows-msvc** binary for `@ironcalc/nodejs`
--- a/bindings/nodejs/npm/win32-x64-msvc/package.json
+++ b/bindings/nodejs/npm/win32-x64-msvc/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "@ironcalc/nodejs-win32-x64-msvc",
+  "version": "0.2.0",
+  "os": [
+    "win32"
+  ],
+  "cpu": [
+    "x64"
+  ],
+  "main": "nodejs.win32-x64-msvc.node",
+  "files": [
+    "nodejs.win32-x64-msvc.node"
+  ],
+  "license": "MIT",
+  "engines": {
+    "node": ">= 10"
+  }
+}
--- a/bindings/nodejs/package-lock.json
+++ b/bindings/nodejs/package-lock.json
--- a/bindings/nodejs/package.json
+++ b/bindings/nodejs/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "@ironcalc/nodejs",
+  "version": "0.3.1",
+  "main": "index.js",
+  "types": "index.d.ts",
+  "napi": {
+    "name": "nodejs",
+    "triples": {
+      "additional": [
+        "aarch64-apple-darwin",
+        "aarch64-linux-android",
+        "aarch64-unknown-linux-gnu",
+        "aarch64-unknown-linux-musl",
+        "aarch64-pc-windows-msvc",
+        "armv7-unknown-linux-gnueabihf",
+        "armv7-unknown-linux-musleabihf",
+        "x86_64-unknown-linux-musl",
+        "armv7-linux-androideabi",
+        "universal-apple-darwin",
+        "riscv64gc-unknown-linux-gnu"
+      ]
+    }
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "@napi-rs/cli": "^2.18.4",
+    "ava": "^6.0.1"
+  },
+  "ava": {
+    "timeout": "3m"
+  },
+  "engines": {
+    "node": ">= 10"
+  },
+  "scripts": {
+    "artifacts": "napi artifacts",
+    "build": "napi build --platform --release",
+    "build:debug": "napi build --platform",
+    "prepublishOnly": "napi prepublish -t npm",
+    "test": "ava",
+    "universal": "napi universal",
+    "version": "napi version"
+  }
+}
--- a/bindings/nodejs/pnpm-lock.yaml
+++ b/bindings/nodejs/pnpm-lock.yaml
--- a/bindings/nodejs/rustfmt.toml
+++ b/bindings/nodejs/rustfmt.toml
@@ -0,0 +1,2 @@
+tab_spaces = 2
+edition = "2021"
--- a/bindings/nodejs/src/lib.rs
+++ b/bindings/nodejs/src/lib.rs
@@ -0,0 +1,8 @@
+#[macro_use]
+extern crate napi_derive;
+
+mod model;
+mod user_model;
+
+pub use model::Model;
+pub use user_model::UserModel;
--- a/bindings/nodejs/src/model.rs
+++ b/bindings/nodejs/src/model.rs
@@ -0,0 +1,343 @@
+#![deny(clippy::all)]
+
+use napi::{self, bindgen_prelude::*, JsUnknown, Result};
+use serde::Serialize;
+
+use ironcalc::{
+  base::{
+    types::{CellType, Style},
+    Model as BaseModel,
+  },
+  error::XlsxError,
+  export::{save_to_icalc, save_to_xlsx},
+  import::{load_from_icalc, load_from_xlsx},
+};
+
+#[derive(Serialize)]
+struct DefinedName {
+  name: String,
+  scope: Option<u32>,
+  formula: String,
+}
+
+fn to_js_error(error: String) -> Error {
+  Error::new(Status::Unknown, error)
+}
+
+fn to_node_error(error: XlsxError) -> Error {
+  Error::new(Status::Unknown, error.to_string())
+}
+
+#[napi]
+pub struct Model {
+  model: BaseModel,
+}
+
+#[napi]
+impl Model {
+  #[napi(constructor)]
+  pub fn new(name: String, locale: String, timezone: String) -> Result<Self> {
+    let model = BaseModel::new_empty(&name, &locale, &timezone).map_err(to_js_error)?;
+    Ok(Self { model })
+  }
+
+  #[napi(factory)]
+  pub fn from_xlsx(file_path: String, locale: String, tz: String) -> Result<Model> {
+    let model = load_from_xlsx(&file_path, &locale, &tz)
+      .map_err(|error| Error::new(Status::Unknown, error.to_string()))?;
+    Ok(Self { model })
+  }
+
+  #[napi(factory)]
+  pub fn from_icalc(file_name: String) -> Result<Model> {
+    let model = load_from_icalc(&file_name)
+      .map_err(|error| Error::new(Status::Unknown, error.to_string()))?;
+    Ok(Self { model })
+  }
+
+  #[napi]
+  pub fn save_to_xlsx(&self, file: String) -> Result<()> {
+    save_to_xlsx(&self.model, &file).map_err(to_node_error)
+  }
+
+  #[napi]
+  pub fn save_to_icalc(&self, file: String) -> Result<()> {
+    save_to_icalc(&self.model, &file).map_err(to_node_error)
+  }
+
+  #[napi]
+  pub fn evaluate(&mut self) {
+    self.model.evaluate();
+  }
+
+  #[napi]
+  pub fn set_user_input(&mut self, sheet: u32, row: i32, column: i32, value: String) -> Result<()> {
+    self
+      .model
+      .set_user_input(sheet, row, column, value)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn clear_cell_contents(&mut self, sheet: u32, row: i32, column: i32) -> Result<()> {
+    self
+      .model
+      .cell_clear_contents(sheet, row, column)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn get_cell_content(&self, sheet: u32, row: i32, column: i32) -> Result<String> {
+    self
+      .model
+      .get_cell_content(sheet, row, column)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getCellType")]
+  pub fn get_cell_type(&self, sheet: u32, row: i32, column: i32) -> Result<i32> {
+    Ok(
+      match self
+        .model
+        .get_cell_type(sheet, row, column)
+        .map_err(to_js_error)?
+      {
+        CellType::Number => 1,
+        CellType::Text => 2,
+        CellType::LogicalValue => 4,
+        CellType::ErrorValue => 16,
+        CellType::Array => 64,
+        CellType::CompoundData => 128,
+      },
+    )
+  }
+
+  #[napi]
+  pub fn get_formatted_cell_value(&self, sheet: u32, row: i32, column: i32) -> Result<String> {
+    self
+      .model
+      .get_formatted_cell_value(sheet, row, column)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn set_cell_style(
+    &mut self,
+    env: Env,
+    sheet: u32,
+    row: i32,
+    column: i32,
+    style: JsUnknown,
+  ) -> Result<()> {
+    let style: Style = env
+      .from_js_value(style)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    self
+      .model
+      .set_cell_style(sheet, row, column, &style)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getCellStyle")]
+  pub fn get_cell_style(
+    &mut self,
+    env: Env,
+    sheet: u32,
+    row: i32,
+    column: i32,
+  ) -> Result<JsUnknown> {
+    let style = self
+      .model
+      .get_style_for_cell(sheet, row, column)
+      .map_err(to_js_error)?;
+
+    env
+      .to_js_value(&style)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi]
+  pub fn insert_rows(&mut self, sheet: u32, row: i32, row_count: i32) -> Result<()> {
+    self
+      .model
+      .insert_rows(sheet, row, row_count)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn insert_columns(&mut self, sheet: u32, column: i32, column_count: i32) -> Result<()> {
+    self
+      .model
+      .insert_columns(sheet, column, column_count)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn delete_rows(&mut self, sheet: u32, row: i32, row_count: i32) -> Result<()> {
+    self
+      .model
+      .delete_rows(sheet, row, row_count)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn delete_columns(&mut self, sheet: u32, column: i32, column_count: i32) -> Result<()> {
+    self
+      .model
+      .delete_columns(sheet, column, column_count)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn get_column_width(&self, sheet: u32, column: i32) -> Result<f64> {
+    self
+      .model
+      .get_column_width(sheet, column)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn get_row_height(&self, sheet: u32, row: i32) -> Result<f64> {
+    self.model.get_row_height(sheet, row).map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn set_column_width(&mut self, sheet: u32, column: i32, width: f64) -> Result<()> {
+    self
+      .model
+      .set_column_width(sheet, column, width)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn set_row_height(&mut self, sheet: u32, row: i32, height: f64) -> Result<()> {
+    self
+      .model
+      .set_row_height(sheet, row, height)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn get_frozen_columns_count(&self, sheet: u32) -> Result<i32> {
+    self
+      .model
+      .get_frozen_columns_count(sheet)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn get_frozen_rows_count(&self, sheet: u32) -> Result<i32> {
+    self.model.get_frozen_rows_count(sheet).map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn set_frozen_columns_count(&mut self, sheet: u32, column_count: i32) -> Result<()> {
+    self
+      .model
+      .set_frozen_columns(sheet, column_count)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn set_frozen_rows_count(&mut self, sheet: u32, row_count: i32) -> Result<()> {
+    self
+      .model
+      .set_frozen_rows(sheet, row_count)
+      .map_err(to_js_error)
+  }
+
+  // I don't _think_ serializing to JsUnknown can't fail
+  // FIXME: Remove this clippy directive
+  #[napi(js_name = "getWorksheetsProperties")]
+  #[allow(clippy::unwrap_used)]
+  pub fn get_worksheets_properties(&self, env: Env) -> JsUnknown {
+    env
+      .to_js_value(&self.model.get_worksheets_properties())
+      .unwrap()
+  }
+
+  #[napi]
+  pub fn set_sheet_color(&mut self, sheet: u32, color: String) -> Result<()> {
+    self
+      .model
+      .set_sheet_color(sheet, &color)
+      .map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn add_sheet(&mut self, sheet_name: String) -> Result<()> {
+    self.model.add_sheet(&sheet_name).map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn new_sheet(&mut self) {
+    self.model.new_sheet();
+  }
+
+  #[napi]
+  pub fn delete_sheet(&mut self, sheet: u32) -> Result<()> {
+    self.model.delete_sheet(sheet).map_err(to_js_error)
+  }
+
+  #[napi]
+  pub fn rename_sheet(&mut self, sheet: u32, new_name: String) -> Result<()> {
+    self
+      .model
+      .rename_sheet_by_index(sheet, &new_name)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getDefinedNameList")]
+  pub fn get_defined_name_list(&self, env: Env) -> Result<JsUnknown> {
+    let data: Vec<DefinedName> = self
+      .model
+      .workbook
+      .get_defined_names_with_scope()
+      .iter()
+      .map(|s| DefinedName {
+        name: s.0.to_owned(),
+        scope: s.1,
+        formula: s.2.to_owned(),
+      })
+      .collect();
+    env
+      .to_js_value(&data)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "newDefinedName")]
+  pub fn new_defined_name(
+    &mut self,
+    name: String,
+    scope: Option<u32>,
+    formula: String,
+  ) -> Result<()> {
+    self
+      .model
+      .new_defined_name(&name, scope, &formula)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "updateDefinedName")]
+  pub fn update_defined_name(
+    &mut self,
+    name: String,
+    scope: Option<u32>,
+    new_name: String,
+    new_scope: Option<u32>,
+    new_formula: String,
+  ) -> Result<()> {
+    self
+      .model
+      .update_defined_name(&name, scope, &new_name, new_scope, &new_formula)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "deleteDefinedName")]
+  pub fn delete_definedname(&mut self, name: String, scope: Option<u32>) -> Result<()> {
+    self
+      .model
+      .delete_defined_name(&name, scope)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+}
--- a/bindings/nodejs/src/user_model.rs
+++ b/bindings/nodejs/src/user_model.rs
@@ -0,0 +1,620 @@
+#![deny(clippy::all)]
+
+use serde::Serialize;
+
+use napi::{self, bindgen_prelude::*, JsUnknown, Result};
+
+use ironcalc::base::{
+  expressions::types::Area,
+  types::{CellType, Style},
+  BorderArea, ClipboardData, UserModel as BaseModel,
+};
+
+#[derive(Serialize)]
+struct DefinedName {
+  name: String,
+  scope: Option<u32>,
+  formula: String,
+}
+
+fn to_js_error(error: String) -> Error {
+  Error::new(Status::Unknown, error)
+}
+
+#[napi]
+pub struct UserModel {
+  model: BaseModel,
+}
+
+#[napi]
+impl UserModel {
+  #[napi(constructor)]
+  pub fn new(name: String, locale: String, timezone: String) -> Result<Self> {
+    let model = BaseModel::new_empty(&name, &locale, &timezone).map_err(to_js_error)?;
+    Ok(Self { model })
+  }
+
+  #[napi(factory)]
+  pub fn from_bytes(bytes: &[u8]) -> Result<UserModel> {
+    let model = BaseModel::from_bytes(bytes).map_err(to_js_error)?;
+    Ok(UserModel { model })
+  }
+
+  pub fn undo(&mut self) -> Result<()> {
+    self.model.undo().map_err(to_js_error)
+  }
+
+  pub fn redo(&mut self) -> Result<()> {
+    self.model.redo().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "canUndo")]
+  pub fn can_undo(&self) -> bool {
+    self.model.can_undo()
+  }
+
+  #[napi(js_name = "canRedo")]
+  pub fn can_redo(&self) -> bool {
+    self.model.can_redo()
+  }
+
+  #[napi(js_name = "pauseEvaluation")]
+  pub fn pause_evaluation(&mut self) {
+    self.model.pause_evaluation()
+  }
+
+  #[napi(js_name = "resumeEvaluation")]
+  pub fn resume_evaluation(&mut self) {
+    self.model.resume_evaluation()
+  }
+
+  pub fn evaluate(&mut self) {
+    self.model.evaluate();
+  }
+
+  #[napi(js_name = "flushSendQueue")]
+  pub fn flush_send_queue(&mut self) -> Vec<u8> {
+    self.model.flush_send_queue()
+  }
+
+  #[napi(js_name = "applyExternalDiffs")]
+  pub fn apply_external_diffs(&mut self, diffs: &[u8]) -> Result<()> {
+    self.model.apply_external_diffs(diffs).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getCellContent")]
+  pub fn get_cell_content(&self, sheet: u32, row: i32, column: i32) -> Result<String> {
+    self
+      .model
+      .get_cell_content(sheet, row, column)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "newSheet")]
+  pub fn new_sheet(&mut self) -> Result<()> {
+    self.model.new_sheet().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "deleteSheet")]
+  pub fn delete_sheet(&mut self, sheet: u32) -> Result<()> {
+    self.model.delete_sheet(sheet).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "hideSheet")]
+  pub fn hide_sheet(&mut self, sheet: u32) -> Result<()> {
+    self.model.hide_sheet(sheet).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "unhideSheet")]
+  pub fn unhide_sheet(&mut self, sheet: u32) -> Result<()> {
+    self.model.unhide_sheet(sheet).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "renameSheet")]
+  pub fn rename_sheet(&mut self, sheet: u32, name: String) -> Result<()> {
+    self.model.rename_sheet(sheet, &name).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setSheetColor")]
+  pub fn set_sheet_color(&mut self, sheet: u32, color: String) -> Result<()> {
+    self
+      .model
+      .set_sheet_color(sheet, &color)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "rangeClearAll")]
+  pub fn range_clear_all(
+    &mut self,
+    sheet: u32,
+    start_row: i32,
+    start_column: i32,
+    end_row: i32,
+    end_column: i32,
+  ) -> Result<()> {
+    let range = Area {
+      sheet,
+      row: start_row,
+      column: start_column,
+      width: end_column - start_column + 1,
+      height: end_row - start_row + 1,
+    };
+    self.model.range_clear_all(&range).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "rangeClearContents")]
+  pub fn range_clear_contents(
+    &mut self,
+    sheet: u32,
+    start_row: i32,
+    start_column: i32,
+    end_row: i32,
+    end_column: i32,
+  ) -> Result<()> {
+    let range = Area {
+      sheet,
+      row: start_row,
+      column: start_column,
+      width: end_column - start_column + 1,
+      height: end_row - start_row + 1,
+    };
+    self.model.range_clear_contents(&range).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "insertRow")]
+  pub fn insert_row(&mut self, sheet: u32, row: i32) -> Result<()> {
+    self.model.insert_row(sheet, row).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "insertColumn")]
+  pub fn insert_column(&mut self, sheet: u32, column: i32) -> Result<()> {
+    self.model.insert_column(sheet, column).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "deleteRow")]
+  pub fn delete_row(&mut self, sheet: u32, row: i32) -> Result<()> {
+    self.model.delete_row(sheet, row).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "deleteColumn")]
+  pub fn delete_column(&mut self, sheet: u32, column: i32) -> Result<()> {
+    self.model.delete_column(sheet, column).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setRowHeight")]
+  pub fn set_row_height(&mut self, sheet: u32, row: i32, height: f64) -> Result<()> {
+    self
+      .model
+      .set_row_height(sheet, row, height)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setColumnWidth")]
+  pub fn set_column_width(&mut self, sheet: u32, column: i32, width: f64) -> Result<()> {
+    self
+      .model
+      .set_column_width(sheet, column, width)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getRowHeight")]
+  pub fn get_row_height(&mut self, sheet: u32, row: i32) -> Result<f64> {
+    self.model.get_row_height(sheet, row).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getColumnWidth")]
+  pub fn get_column_width(&mut self, sheet: u32, column: i32) -> Result<f64> {
+    self
+      .model
+      .get_column_width(sheet, column)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setUserInput")]
+  pub fn set_user_input(&mut self, sheet: u32, row: i32, column: i32, input: String) -> Result<()> {
+    self
+      .model
+      .set_user_input(sheet, row, column, &input)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getFormattedCellValue")]
+  pub fn get_formatted_cell_value(&self, sheet: u32, row: i32, column: i32) -> Result<String> {
+    self
+      .model
+      .get_formatted_cell_value(sheet, row, column)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getFrozenRowsCount")]
+  pub fn get_frozen_rows_count(&self, sheet: u32) -> Result<i32> {
+    self.model.get_frozen_rows_count(sheet).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getFrozenColumnsCount")]
+  pub fn get_frozen_columns_count(&self, sheet: u32) -> Result<i32> {
+    self
+      .model
+      .get_frozen_columns_count(sheet)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setFrozenRowsCount")]
+  pub fn set_frozen_rows_count(&mut self, sheet: u32, count: i32) -> Result<()> {
+    self
+      .model
+      .set_frozen_rows_count(sheet, count)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setFrozenColumnsCount")]
+  pub fn set_frozen_columns_count(&mut self, sheet: u32, count: i32) -> Result<()> {
+    self
+      .model
+      .set_frozen_columns_count(sheet, count)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "updateRangeStyle")]
+  pub fn update_range_style(
+    &mut self,
+    env: Env,
+    range: JsUnknown,
+    style_path: String,
+    value: String,
+  ) -> Result<()> {
+    let range: Area = env
+      .from_js_value(range)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    self
+      .model
+      .update_range_style(&range, &style_path, &value)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getCellStyle")]
+  pub fn get_cell_style(
+    &mut self,
+    env: Env,
+    sheet: u32,
+    row: i32,
+    column: i32,
+  ) -> Result<JsUnknown> {
+    let style = self
+      .model
+      .get_cell_style(sheet, row, column)
+      .map_err(to_js_error)?;
+
+    env
+      .to_js_value(&style)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "onPasteStyles")]
+  pub fn on_paste_styles(&mut self, env: Env, styles: JsUnknown) -> Result<()> {
+    let styles: &Vec<Vec<Style>> = &env
+      .from_js_value(styles)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    self.model.on_paste_styles(styles).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getCellType")]
+  pub fn get_cell_type(&self, sheet: u32, row: i32, column: i32) -> Result<i32> {
+    Ok(
+      match self
+        .model
+        .get_cell_type(sheet, row, column)
+        .map_err(to_js_error)?
+      {
+        CellType::Number => 1,
+        CellType::Text => 2,
+        CellType::LogicalValue => 4,
+        CellType::ErrorValue => 16,
+        CellType::Array => 64,
+        CellType::CompoundData => 128,
+      },
+    )
+  }
+
+  // I don't _think_ serializing to JsUnknown can't fail
+  // FIXME: Remove this clippy directive
+  #[napi(js_name = "getWorksheetsProperties")]
+  #[allow(clippy::unwrap_used)]
+  pub fn get_worksheets_properties(&self, env: Env) -> JsUnknown {
+    env
+      .to_js_value(&self.model.get_worksheets_properties())
+      .unwrap()
+  }
+
+  #[napi(js_name = "getSelectedSheet")]
+  pub fn get_selected_sheet(&self) -> u32 {
+    self.model.get_selected_sheet()
+  }
+
+  #[napi(js_name = "getSelectedCell")]
+  pub fn get_selected_cell(&self) -> Vec<i32> {
+    let (sheet, row, column) = self.model.get_selected_cell();
+    vec![sheet as i32, row, column]
+  }
+
+  // I don't _think_ serializing to JsUnknown can't fail
+  // FIXME: Remove this clippy directive
+  #[napi(js_name = "getSelectedView")]
+  #[allow(clippy::unwrap_used)]
+  pub fn get_selected_view(&self, env: Env) -> JsUnknown {
+    env.to_js_value(&self.model.get_selected_view()).unwrap()
+  }
+
+  #[napi(js_name = "setSelectedSheet")]
+  pub fn set_selected_sheet(&mut self, sheet: u32) -> Result<()> {
+    self.model.set_selected_sheet(sheet).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setSelectedCell")]
+  pub fn set_selected_cell(&mut self, row: i32, column: i32) -> Result<()> {
+    self
+      .model
+      .set_selected_cell(row, column)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setSelectedRange")]
+  pub fn set_selected_range(
+    &mut self,
+    start_row: i32,
+    start_column: i32,
+    end_row: i32,
+    end_column: i32,
+  ) -> Result<()> {
+    self
+      .model
+      .set_selected_range(start_row, start_column, end_row, end_column)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setTopLeftVisibleCell")]
+  pub fn set_top_left_visible_cell(&mut self, top_row: i32, top_column: i32) -> Result<()> {
+    self
+      .model
+      .set_top_left_visible_cell(top_row, top_column)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setShowGridLines")]
+  pub fn set_show_grid_lines(&mut self, sheet: u32, show_grid_lines: bool) -> Result<()> {
+    self
+      .model
+      .set_show_grid_lines(sheet, show_grid_lines)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getShowGridLines")]
+  pub fn get_show_grid_lines(&mut self, sheet: u32) -> Result<bool> {
+    self.model.get_show_grid_lines(sheet).map_err(to_js_error)
+  }
+
+  #[napi(js_name = "autoFillRows")]
+  pub fn auto_fill_rows(&mut self, env: Env, source_area: JsUnknown, to_row: i32) -> Result<()> {
+    let area: Area = env
+      .from_js_value(source_area)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    self
+      .model
+      .auto_fill_rows(&area, to_row)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "autoFillColumns")]
+  pub fn auto_fill_columns(
+    &mut self,
+    env: Env,
+    source_area: JsUnknown,
+    to_column: i32,
+  ) -> Result<()> {
+    let area: Area = env
+      .from_js_value(source_area)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    self
+      .model
+      .auto_fill_columns(&area, to_column)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "onArrowRight")]
+  pub fn on_arrow_right(&mut self) -> Result<()> {
+    self.model.on_arrow_right().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "onArrowLeft")]
+  pub fn on_arrow_left(&mut self) -> Result<()> {
+    self.model.on_arrow_left().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "onArrowUp")]
+  pub fn on_arrow_up(&mut self) -> Result<()> {
+    self.model.on_arrow_up().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "onArrowDown")]
+  pub fn on_arrow_down(&mut self) -> Result<()> {
+    self.model.on_arrow_down().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "onPageDown")]
+  pub fn on_page_down(&mut self) -> Result<()> {
+    self.model.on_page_down().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "onPageUp")]
+  pub fn on_page_up(&mut self) -> Result<()> {
+    self.model.on_page_up().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setWindowWidth")]
+  pub fn set_window_width(&mut self, window_width: f64) {
+    self.model.set_window_width(window_width);
+  }
+
+  #[napi(js_name = "setWindowHeight")]
+  pub fn set_window_height(&mut self, window_height: f64) {
+    self.model.set_window_height(window_height);
+  }
+
+  #[napi(js_name = "getScrollX")]
+  pub fn get_scroll_x(&self) -> Result<f64> {
+    self.model.get_scroll_x().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "getScrollY")]
+  pub fn get_scroll_y(&self) -> Result<f64> {
+    self.model.get_scroll_y().map_err(to_js_error)
+  }
+
+  #[napi(js_name = "onExpandSelectedRange")]
+  pub fn on_expand_selected_range(&mut self, key: String) -> Result<()> {
+    self
+      .model
+      .on_expand_selected_range(&key)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "onAreaSelecting")]
+  pub fn on_area_selecting(&mut self, target_row: i32, target_column: i32) -> Result<()> {
+    self
+      .model
+      .on_area_selecting(target_row, target_column)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setAreaWithBorder")]
+  pub fn set_area_with_border(
+    &mut self,
+    env: Env,
+    area: JsUnknown,
+    border_area: JsUnknown,
+  ) -> Result<()> {
+    let range: Area = env
+      .from_js_value(area)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    let border: BorderArea = env
+      .from_js_value(border_area)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    self
+      .model
+      .set_area_with_border(&range, &border)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    Ok(())
+  }
+
+  #[napi(js_name = "toBytes")]
+  pub fn to_bytes(&self) -> Vec<u8> {
+    self.model.to_bytes()
+  }
+
+  #[napi(js_name = "getName")]
+  pub fn get_name(&self) -> String {
+    self.model.get_name()
+  }
+
+  #[napi(js_name = "setName")]
+  pub fn set_name(&mut self, name: String) {
+    self.model.set_name(&name);
+  }
+
+  #[napi(js_name = "copyToClipboard")]
+  pub fn copy_to_clipboard(&self, env: Env) -> Result<JsUnknown> {
+    let data = self
+      .model
+      .copy_to_clipboard()
+      .map_err(|e| to_js_error(e.to_string()))?;
+
+    env
+      .to_js_value(&data)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "pasteFromClipboard")]
+  pub fn paste_from_clipboard(
+    &mut self,
+    env: Env,
+    source_sheet: u32,
+    source_range: JsUnknown,
+    clipboard: JsUnknown,
+    is_cut: bool,
+  ) -> Result<()> {
+    let source_range: (i32, i32, i32, i32) = env
+      .from_js_value(source_range)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    let clipboard: ClipboardData = env
+      .from_js_value(clipboard)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    self
+      .model
+      .paste_from_clipboard(source_sheet, source_range, &clipboard, is_cut)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "pasteCsvText")]
+  pub fn paste_csv_string(&mut self, env: Env, area: JsUnknown, csv: String) -> Result<()> {
+    let range: Area = env
+      .from_js_value(area)
+      .map_err(|e| to_js_error(e.to_string()))?;
+    self
+      .model
+      .paste_csv_string(&range, &csv)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "getDefinedNameList")]
+  pub fn get_defined_name_list(&self, env: Env) -> Result<JsUnknown> {
+    let data: Vec<DefinedName> = self
+      .model
+      .get_defined_name_list()
+      .iter()
+      .map(|s| DefinedName {
+        name: s.0.to_owned(),
+        scope: s.1,
+        formula: s.2.to_owned(),
+      })
+      .collect();
+    env
+      .to_js_value(&data)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "newDefinedName")]
+  pub fn new_defined_name(
+    &mut self,
+    name: String,
+    scope: Option<u32>,
+    formula: String,
+  ) -> Result<()> {
+    self
+      .model
+      .new_defined_name(&name, scope, &formula)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "updateDefinedName")]
+  pub fn update_defined_name(
+    &mut self,
+    name: String,
+    scope: Option<u32>,
+    new_name: String,
+    new_scope: Option<u32>,
+    new_formula: String,
+  ) -> Result<()> {
+    self
+      .model
+      .update_defined_name(&name, scope, &new_name, new_scope, &new_formula)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+
+  #[napi(js_name = "deleteDefinedName")]
+  pub fn delete_definedname(&mut self, name: String, scope: Option<u32>) -> Result<()> {
+    self
+      .model
+      .delete_defined_name(&name, scope)
+      .map_err(|e| to_js_error(e.to_string()))
+  }
+}
--- a/bindings/nodejs/yarn.lock
+++ b/bindings/nodejs/yarn.lock
--- a/bindings/python/Cargo.lock
+++ b/bindings/python/Cargo.lock
@@ -1,884 +0,0 @@
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--- a/bindings/python/Cargo.toml
+++ b/bindings/python/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyroncalc"
-version = "0.1.2"
+version = "0.3.0"
 edition = "2021"


@@ -12,8 +12,8 @@ crate-type = ["cdylib"]
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-xlsx = { package= "ironcalc", path = "../../xlsx", version = "0.2.0" }
-pyo3 = { version = "0.22.3", features = ["extension-module"] }
+xlsx = { package= "ironcalc", path = "../../xlsx", version = "0.3.0" }
+pyo3 = { version = "0.23", features = ["extension-module"] }


 [features]
--- a/bindings/python/pyproject.toml
+++ b/bindings/python/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "ironcalc"
-version = "0.1.2"
+version = "0.3.0"
 description = "Create, edit and evaluate Excel spreadsheets"
 requires-python = ">=3.10"
 keywords = [
--- a/bindings/wasm/Cargo.toml
+++ b/bindings/wasm/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "wasm"
-version = "0.1.3"
+version = "0.3.0"
 authors = ["Nicolas Hatcher <nicolas@theuniverse.today>"]
 description = "IronCalc Web bindings"
 license = "MIT/Apache-2.0"
-repository = "https://github.com/ironcalc/web-bindings"
+repository = "https://github.com/ironcalc/ironcalc"
 edition = "2021"

 [lib]
@@ -14,7 +14,7 @@ crate-type = ["cdylib"]
 # Uses `../ironcalc/base` when used locally, and uses
 # the inicated version from crates.io when published.
 # https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#multiple-locations
-ironcalc_base = { path = "../../base", version = "0.2", features = ["use_regex_lite"] }
+ironcalc_base = { path = "../../base", version = "0.3", features = ["use_regex_lite"] }
 serde = { version = "1.0", features = ["derive"] }
 wasm-bindgen = "0.2.92"
 serde-wasm-bindgen = "0.4"
--- a/bindings/wasm/Makefile
+++ b/bindings/wasm/Makefile
@@ -1,8 +1,17 @@
+# In some platforms, python is called python3
+PYTHON := $(shell command -v python 2>/dev/null || command -v python3 2>/dev/null)
+
+# If neither is found, fail immediately
+ifeq ($(PYTHON),)
+  $(error No python found. Please install python.)
+endif
+
 all:
 	wasm-pack build --target web --scope ironcalc --release
 	cp README.pkg.md pkg/README.md
 	tsc types.ts --target esnext --module esnext
-	python fix_types.py
+	$(PYTHON) fix_types.py
+	rm -f types.js

 tests:
 	wasm-pack build --target nodejs && node tests/test.mjs
--- a/bindings/wasm/fix_types.py
+++ b/bindings/wasm/fix_types.py
@@ -187,6 +187,20 @@ paste_from_clipboard_types = r"""
  pasteFromClipboard(source_sheet: number, source_range: [number, number, number, number], clipboard: ClipboardData, is_cut: boolean): void;
 """

+defined_name_list = r"""
+/**
+* @returns {any}
+*/
+  getDefinedNameList(): any;
+"""
+
+defined_name_list_types = r"""
+/**
+* @returns {DefinedName[]}
+*/
+  getDefinedNameList(): DefinedName[];
+"""
+
 def fix_types(text):
    text = text.replace(get_tokens_str, get_tokens_str_types)
    text = text.replace(update_style_str, update_style_str_types)
@@ -200,6 +214,7 @@ def fix_types(text):
    text = text.replace(paste_csv_string, paste_csv_string_types)
    text = text.replace(clipboard, clipboard_types)
    text = text.replace(paste_from_clipboard, paste_from_clipboard_types)
+    text = text.replace(defined_name_list, defined_name_list_types)
    with open("types.ts") as f:
        types_str = f.read()
        header_types = "{}\n\n{}".format(header, types_str)
--- a/bindings/wasm/src/lib.rs
+++ b/bindings/wasm/src/lib.rs
@@ -1,3 +1,4 @@
+use serde::Serialize;
 use wasm_bindgen::{
    prelude::{wasm_bindgen, JsError},
    JsValue,
@@ -29,6 +30,13 @@ pub fn column_name_from_number(column: i32) -> Result<String, JsError> {
    }
 }

+#[derive(Serialize)]
+struct DefinedName {
+    name: String,
+    scope: Option<u32>,
+    formula: String,
+}
+
 #[wasm_bindgen]
 pub struct Model {
    model: BaseModel,
@@ -106,6 +114,16 @@ impl Model {
        self.model.delete_sheet(sheet).map_err(to_js_error)
    }

+    #[wasm_bindgen(js_name = "hideSheet")]
+    pub fn hide_sheet(&mut self, sheet: u32) -> Result<(), JsError> {
+        self.model.hide_sheet(sheet).map_err(to_js_error)
+    }
+
+    #[wasm_bindgen(js_name = "unhideSheet")]
+    pub fn unhide_sheet(&mut self, sheet: u32) -> Result<(), JsError> {
+        self.model.unhide_sheet(sheet).map_err(to_js_error)
+    }
+
    #[wasm_bindgen(js_name = "renameSheet")]
    pub fn rename_sheet(&mut self, sheet: u32, name: &str) -> Result<(), JsError> {
        self.model.rename_sheet(sheet, name).map_err(to_js_error)
@@ -542,4 +560,52 @@ impl Model {
            .paste_csv_string(&range, csv)
            .map_err(|e| to_js_error(e.to_string()))
    }
+
+    #[wasm_bindgen(js_name = "getDefinedNameList")]
+    pub fn get_defined_name_list(&self) -> Result<JsValue, JsError> {
+        let data: Vec<DefinedName> = self
+            .model
+            .get_defined_name_list()
+            .iter()
+            .map(|s| DefinedName {
+                name: s.0.to_owned(),
+                scope: s.1,
+                formula: s.2.to_owned(),
+            })
+            .collect();
+        serde_wasm_bindgen::to_value(&data).map_err(|e| to_js_error(e.to_string()))
+    }
+
+    #[wasm_bindgen(js_name = "newDefinedName")]
+    pub fn new_defined_name(
+        &mut self,
+        name: &str,
+        scope: Option<u32>,
+        formula: &str,
+    ) -> Result<(), JsError> {
+        self.model
+            .new_defined_name(name, scope, formula)
+            .map_err(|e| to_js_error(e.to_string()))
+    }
+
+    #[wasm_bindgen(js_name = "updateDefinedName")]
+    pub fn update_defined_name(
+        &mut self,
+        name: &str,
+        scope: Option<u32>,
+        new_name: &str,
+        new_scope: Option<u32>,
+        new_formula: &str,
+    ) -> Result<(), JsError> {
+        self.model
+            .update_defined_name(name, scope, new_name, new_scope, new_formula)
+            .map_err(|e| to_js_error(e.to_string()))
+    }
+
+    #[wasm_bindgen(js_name = "deleteDefinedName")]
+    pub fn delete_definedname(&mut self, name: &str, scope: Option<u32>) -> Result<(), JsError> {
+        self.model
+            .delete_defined_name(name, scope)
+            .map_err(|e| to_js_error(e.to_string()))
+    }
 }
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Nicolás Hatcher	610b899f66	UPDATE: Add raw API to nodejs bindings	2025-01-28 20:26:39 +01:00
Nicolás Hatcher Andrés	24fb87721f	Update npm.yml	2025-01-28 08:09:17 +01:00
Nicolás Hatcher	d3bc8b135c	FIX: Try a boolean argument for the CI instead	2025-01-28 08:09:17 +01:00
Daniel González-Albo	0f6d311de2	Merge pull request #252 from ironcalc/fix/dani-delete-sheet UPDATE: Deleting a sheet prompts a confirmation dialog	2025-01-28 01:11:46 +01:00
Daniel	0c15ae194d	Fix: simplified code by having only 1 dynamic message	2025-01-26 19:00:00 +01:00
Nicolás Hatcher	5d429b1660	UPDATE: Add node bindings	2025-01-26 11:01:42 +01:00
Daniel	20c4a596bf	UPDATE: Localization	2025-01-21 01:21:03 +01:00
Daniel	f07a69260f	UPDATE: Deleting a sheet prompts a confirmation dialog	2025-01-21 01:20:42 +01:00
Nicolás Hatcher	ec4e7b1ca3	FIX: Fix ERF.PRECISE and ERFC.PRECISE links in documentation	2025-01-20 17:22:33 +01:00
Steve Fanning	81d25b6ec9	Add ERFC, ERF.PRECISE and ERFC.PRECISE functions	2025-01-20 17:22:33 +01:00
Nicolás Hatcher	3a001d96b8	FIX: Can cut and paste in Custom Format Dialog Fixes #240 It is a pity we have to do this. There probably is a better way	2025-01-19 22:37:42 +01:00
Nicolás Hatcher	69ca1f178c	FIX: Uses python3 if python is not available	2025-01-19 22:27:00 +01:00
Nicolás Hatcher	feb22cced3	UPDATE: Adds storybook This is a bit on an emergency PR to unblock Dani	2025-01-19 17:38:33 +01:00
Nicolás Hatcher	c88304ba96	FIX: Fixes from "the big split"	2025-01-19 14:43:30 +01:00
Nicolás Hatcher	fa0b386abc	FIX: Added file from "the big split"	2025-01-19 14:31:58 +01:00
Nicolás Hatcher	ff0d05e3a0	FIX: Make clippy happy (upgrade dependencies)	2025-01-19 14:31:58 +01:00
Nicolás Hatcher	1b7389fd23	FIX: Make Clippy happy Automatic fixes	2025-01-19 14:31:58 +01:00
Steve Fanning	263bab2cf9	"Change markdown file names for ERF.PRECISE and ERFC.PRECISE"	2025-01-18 10:56:51 +01:00
Steve Fanning	2e0722f9b5	Fix typos in ERF function description	2025-01-18 10:56:51 +01:00
Steve Fanning	fd72bca141	Add description for ERF function.	2025-01-18 10:56:51 +01:00
Nicolás Hatcher	8215cfc9fb	UPDATE: split the webapp in a widget and the app itself This splits the webapp in: * IronCalc (the widget to be published on npmjs) * The frontend for our "service" * Adds "dummy code" for the backend using sqlite	2025-01-17 19:27:55 +01:00
Daniel	378f8351d3	Small fix in maxWidth	2025-01-15 18:03:44 +01:00
Daniel	c770b3229c	Mobile view	2025-01-15 18:03:44 +01:00
Daniel	b0f57b20c2	Height adjusment, theme/hex replacement	2025-01-15 18:03:44 +01:00
Daniel	912fcae0a3	Footer and header are now consistent with other dialogs	2025-01-15 18:03:44 +01:00
Daniel	cc72d031b5	Action buttons consistency and tooltips	2025-01-15 18:03:44 +01:00
Daniel	e8c18ebc5e	More row height and alignment	2025-01-15 18:03:44 +01:00
Daniel	576c358e2a	More alignment fixes	2025-01-15 18:03:44 +01:00
Daniel	eb03efba3e	FIX: Layout and spacing adjustments	2025-01-15 18:03:44 +01:00
Daniel	43e9cb3523	FIX: Small adjustments after feedback	2025-01-11 19:05:48 +01:00
Daniel	b95c0642da	FIX: UploadFileDialog is now a proper dialog for easy focusing	2025-01-11 19:05:48 +01:00
Daniel	185a70224c	FIX: Makes sure tabIndex works properly on formatPicker dialog	2025-01-11 19:05:48 +01:00
Daniel	a4c3233253	FIX: Makes sure tabIndex works properly on SheetRenameDialog	2025-01-11 19:05:48 +01:00
Steve Fanning	ac9dc22972	Minor updates to DAY function page and example spreadsheet	2025-01-02 18:29:12 +01:00
Steve Fanning	68b5364bbd	Fix typo to reflect minimum serial number of 1.	2025-01-02 18:19:43 +01:00
Steve Fanning	02e726b445	Add YEAR function description	2025-01-02 18:19:43 +01:00
Steve Fanning	f63d307fec	Fix typo to reflect minimum serial number of 1.	2025-01-02 18:18:12 +01:00
Steve Fanning	99e1110261	Add MONTH function description	2025-01-02 18:18:12 +01:00
Nicolás Hatcher	91eb66993d	FIX: Add link to name manager page	2025-01-01 18:25:39 +01:00
Nicolás Hatcher	87e8b7a20b	FIX: Make biome happy	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	97b27006cf	FIX: Correct size of dropdown fonts	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	b7f7e73824	FIX: Ranges selected should be absolute. Sheet1!$D$1 rather than Sheet1!D1 There reason is that if we extend a formula that has those will behave in surprising ways.	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	ea194ee730	FIX: Move model out of te nameManager	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	cbb413f100	FIX: Isolate model specific stuff	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	a4cf93c49a	FIX: Add link to help	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	70366ea60c	FIX: Remove redundant variable	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	9aa1b4574e	FIX: Remove Model dependency	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	82b2d28663	FIX: Set a visual cue when a name is wrong	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	d2ba34166b	FIX: Refactor model out of the dialogs	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	99d42cb1e2	FIX: onDelete and onCancel are mandatory properties In general optional arguments are a bad idea, because you loose the type and all it's benefits. Did you forget an argument or you didn't need it?	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	ddc785e7a6	FIX: Minor formatting issues	2025-01-01 18:08:52 +01:00
Nicolás Hatcher	8ab1382e75	FIX: Renames folder NameManager => NameManagerDialog	2025-01-01 18:08:52 +01:00
francisco aloi	ec5714e3ec	more style changes, changelog and locale	2025-01-01 11:54:33 +01:00
francisco aloi	4660f0e456	refactored NamedRanges logic and styles	2025-01-01 11:54:33 +01:00
francisco aloi	f2757e7d76	updated util, added test	2025-01-01 11:54:33 +01:00
francisco aloi	5ca15033f7	changes to name manager after review	2025-01-01 11:54:33 +01:00
francisco aloi	75e04696b5	refactored NameManager logic for new design	2025-01-01 11:54:33 +01:00
francisco aloi	832ca02e16	NamedRanges changes	2025-01-01 11:54:33 +01:00
Nicolás Hatcher	cbda30f951	FIX: Use 1 as the first serial number corresponding to 1899-12-31	2025-01-01 11:53:05 +01:00
Steve Fanning	564d4bac7a	Add DAY function description	2025-01-01 11:44:44 +01:00
Shalom Yiblet	0dd26e8fee	fix: fix xml escape in worksheet xml	2024-12-31 09:07:39 +01:00
Nicolás Hatcher	f6fbb4b303	FIX: The default border color should be black	2024-12-30 14:15:48 +01:00
Nicolás Hatcher	c6adf8449b	FIX: Dates are only valid up to the last day of 9999	2024-12-30 14:15:09 +01:00
Shalom Yiblet	d04691b790	refactor(dates): adjust date handling logic for improved accuracy Updated the logic for handling months and days to improve date calculations. Also modified the constants for Excel date ranges to align with supported dates.	2024-12-30 13:12:33 +01:00
Shalom Yiblet	7c32088480	feat: update date	2024-12-30 13:12:33 +01:00
Nicolás Hatcher	6326c44941	FIX: TRUE and FALSE can also be functions Previously the engine was internally transforming TRUE() to TRUE Note that the friendly giant implements this only for compatibility reasons	2024-12-29 19:17:54 +01:00
Nicolás Hatcher	d3af994866	FIX[docs]: Fixes broken links	2024-12-29 13:28:56 +01:00
Nicolás Hatcher	b859af1dc4	FIX: Disable TAN from being tested	2024-12-29 13:28:56 +01:00
Steve Fanning	f9cfdeb35b	Add TAN function description	2024-12-29 11:03:07 +01:00
Nicolás Hatcher	669a5eec39	FIX: Removes types.js after used	2024-12-28 14:49:32 +01:00
Steve Fanning	e268dda9e8	Add SIN function description	2024-12-28 12:28:16 +01:00
Nicolás Hatcher	e0205d6c9a	FIX: Increments the dum counter in the number of documented functions	2024-12-28 10:55:09 +01:00
Steve Fanning	81ad724348	Add COS function description	2024-12-28 10:46:32 +01:00
Nicolás Hatcher	dc3bf8826b	FIX: PV Return #DIV/0! instead of #NUM! if rate = -1	2024-12-27 20:19:32 +01:00
Steve Fanning	38023d3156	Include PV function description	2024-12-27 20:19:32 +01:00
Gian Hancock	655d663590	FIX: Make XOR, OR, AND functions more consistent with Excel The way these functions interpret their arguments is inconsistent with Excel in a few ways: - EmptyCell: Excel ignores arguments evaluating to these types of values, treating them as if they didn't exist. - Text: Text cells are ignored unless they are "TRUE" or "FALSE" (case insensitive). EXCEPT if the string value comes from a reference, in which case it is always ignored regardless of its value. - Error if no args: Excel returns a #VALUE! error for these functions if no arguments are provided, or if all arguments are ignored (see above). - EmptyArg: Bizarrely, Unlike EmptyCell, EmptyArg is not ignored and is treated as if it were FALSE by Excel. - ErrorPropagation: Excel propagates errors in the arguments and in cells belonging to any Range arguments. Additionally, these functions are not consistent with each other, XOR, OR, AND vary in how they handle the cases mentioned above. Rectify these consistency issues by re-implementing them all in terms of a single base function which is more consistent with Excel behavior.	2024-12-26 15:06:54 +01:00
Gian Hancock	8ba30fde33	Add more tests for OR and XOR Some of these tests fail due to inconsistencies with Excel cleanup	2024-12-26 15:06:54 +01:00
Nicolás Hatcher	690032c811	FIX: Remove optional context in parser The context was optional because I thought that paring an RC formula did not need context. You at least need the sheet in which you are parsing For instance toknow if a defined name is local	2024-12-26 10:21:21 +01:00
Nicolás Hatcher	86213a8434	FIX: Add test for get_defined_name_list Also uses the scope instead of the opaque sheet_id	2024-12-26 10:21:21 +01:00
Nicolás Hatcher	2ed5fb9bbc	FIX: Adds some validation and tests	2024-12-26 10:21:21 +01:00
Nicolás Hatcher	e455ed14ea	UPDATE: API for defined names	2024-12-26 10:21:21 +01:00
Daniel	ad2efad3ae	FIX: Remove tabIndex and onKeyDown as they were not used	2024-12-25 20:04:48 +01:00
Daniel	40461b897b	FIX: Adds crossRef back to UploadFileDialog	2024-12-25 20:04:48 +01:00
Daniel	2e7410552f	FIX: Apply useTranslation on dialog tooltips	2024-12-25 20:04:48 +01:00
Daniel	095002710b	Fix: Removed unnecessary ref	2024-12-25 20:04:48 +01:00
Daniel	8ba131011e	FIX: Replace SVG "X" icons with Lucide icons for consistency in dialogs	2024-12-25 20:04:48 +01:00
Nicolás Hatcher Andrés	dbddc027fb	Update test-coverage.yaml	2024-12-25 16:57:54 +01:00
Steve Fanning	de997f38f5	Minor updates to Error Types and Value Types documentation	2024-12-25 13:47:21 +01:00
Steve Fanning	df4b4ca353	Update to FV description and associated pages in the Features area.	2024-12-25 13:47:21 +01:00
Daniel	3b944cd659	FIX: Use the right icon for paste format action	2024-12-20 20:13:25 +01:00
Nicolás Hatcher Andrés	d1f2b2acdd	Update test-coverage.yaml	2024-12-20 14:10:02 +01:00
Daniel González-Albo	36f915b193	Merge pull request #207 from ironcalc/feature/nicolas-hidden UPDATE: Hide/Unhide sheets	2024-12-20 10:14:09 +01:00
Nicolás Hatcher	5d8e6255a3	UPDATE: Hide/Unhide sheets	2024-12-20 00:49:33 +01:00
Daniel González-Albo	73f3c06203	Merge pull request #205 from ironcalc/bugfix/nico-dialog-fixes FIX[WebApp]: Some fixes to the DeleteWorkbook and Import dialogs	2024-12-20 00:16:42 +01:00
Nicolás Hatcher	13b1157c61	FIX[WebApp]: Some fixes to the DeleteWorkbook and Import dialogs	2024-12-19 21:14:05 +01:00