UPDATE: Add a dialog when 'Share' buttons is clickled

This downloads only the visible part of the selected area.
To download the full selected area we would need to work a bit more

.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 }}

.github/workflows/pypi.yml

@@ -0,0 +1,143 @@
+name: Upload component to Python Package Index
+
+on:
+  workflow_dispatch:
+    inputs:
+      release:
+        type: boolean
+        default: false
+        required: false
+        description: "Release? If false, publish to test.pypi.org, if true, publish to pypi.org"
+
+permissions:
+  contents: read
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target: [x86_64, x86, aarch64, armv7, s390x, ppc64le]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+      - name: Build wheels
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          args: --release --out dist --find-interpreter
+          sccache: 'true'
+          manylinux: auto
+          working-directory: bindings/python
+      - name: Upload wheels
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: bindings/python/dist
+
+  windows:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        target: [x64, x86]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+          architecture: ${{ matrix.target }}
+      - name: Build wheels
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          args: --release --out dist --find-interpreter
+          sccache: 'true'
+          working-directory: bindings/python
+      - name: Upload wheels
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: bindings/python/dist
+
+  macos:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        target: [x86_64, aarch64]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+      - name: Build wheels
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          args: --release --out dist --find-interpreter
+          sccache: 'true'
+          working-directory: bindings/python
+      - name: Upload wheels
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: bindings/python/dist
+
+  sdist:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Build sdist
+        uses: PyO3/maturin-action@v1
+        with:
+          command: sdist
+          args: --out dist
+          working-directory: bindings/python
+      - name: Upload sdist
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: bindings/python/dist
+
+  publish-to-test-pypi:
+    if: ${{ github.event.inputs.release != 'true' }}
+    name: >-
+        Publish Python 🐍 distribution 📦 to Test PyPI
+    runs-on: ubuntu-latest
+    needs: [linux, windows, macos, sdist]
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: wheels
+          path: bindings/python/
+      - name: Publish distribution 📦 to Test PyPI
+        uses: PyO3/maturin-action@v1
+        env:
+          MATURIN_PYPI_TOKEN: ${{ secrets.PYPI_TEST_API_TOKEN }}
+          MATURIN_REPOSITORY_URL: "https://test.pypi.org/legacy/"
+        with:
+          command: upload
+          args: --skip-existing *
+          working-directory: bindings/python
+
+  publish-pypi:
+    if: ${{ github.event.inputs.release == 'true' }}
+    name: >-
+        Publish Python 🐍 distribution 📦 to PyPI
+    runs-on: ubuntu-latest
+    needs: [linux, windows, macos, sdist]
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: wheels
+          path: bindings/python/
+      - name: Publish distribution 📦 to PyPI
+        uses: PyO3/maturin-action@v1
+        env:
+          MATURIN_PYPI_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
+          MATURIN_REPOSITORY_URL: "https://upload.pypi.org/legacy/"
+        with:
+          command: upload
+          args: --skip-existing *
+          working-directory: bindings/python

.gitignore

@@ -1,2 +1,3 @@
 target/*
-.DS_Store
+**/node_modules/**
+.DS_Store

CHANGELOG.md

@@ -7,12 +7,21 @@
 - 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))
+- Add context menu. We can now insert rows and columns. Freeze and unfreeze rows and columns. Delete rows and columns [#271]
+- Add nodejs bindings [#254]
+- Add python bindings for all platforms
+- Add is split into the product and widget
+- Add Python documentation [#260]
 
 ### Fixed
 
 - Fixed several issues with pasting content
 - Fixed several issues with borders
 - Fixed bug where columns and rows could be resized to negative width and height, respectively
+- Undo/redo when add/delete sheet now works [#270]
+- Numerous small fixes
+- Multiple fixes to the documentation
 
 ## [0.2.0] - 2024-11-06 (The HN release)
 

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 = "0.3.2"
 dependencies = [
  "ironcalc_base",
  "serde",

Cargo.toml

@@ -6,10 +6,12 @@ members = [
   "xlsx",
   "bindings/wasm",
   "bindings/python",
+  "bindings/nodejs",
 ]
 
 exclude = [
   "generate_locale",
+  "webapp/app.ironcalc.com/server",
 ]
 
 [profile.release]

Makefile

@@ -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

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

base/src/actions.rs

@@ -136,6 +136,33 @@ impl Model {
             }),
         );
 
+        // In the list of columns:
+        // * Keep all the columns to the left
+        // * Displace all the columns to the right
+
+        let worksheet = &mut self.workbook.worksheet_mut(sheet)?;
+
+        let mut new_columns = Vec::new();
+        for col in worksheet.cols.iter_mut() {
+            // range under study
+            let min = col.min;
+            let max = col.max;
+            if column > max {
+                // If the range under study is to our left, this is a noop
+            } else if column <= min {
+                // If the range under study is to our right, we displace it
+                col.min = min + column_count;
+                col.max = max + column_count;
+            } else {
+                // If the range under study is in the middle we augment it
+                col.max = max + column_count;
+            }
+            new_columns.push(col.clone());
+        }
+        // TODO: If in a row the cell to the right and left have the same style we should copy it
+
+        worksheet.cols = new_columns;
+
         Ok(())
     }
 

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;

base/src/expressions/parser/mod.rs

@@ -642,7 +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 {

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),
+        );
+    }
+}

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) {
+            let date = match from_excel_date(value as i64) {
-                // 2_958_465 is 31 December 9999
+                Ok(d) => d,
-                return Formatted {
+                Err(e) => {
-                    text: "#VALUE!".to_owned(),
+                    return Formatted {
-                    color: None,
+                        text: "#VALUE!".to_owned(),
-                    error: Some("Date negative or too long".to_owned()),
+                        color: None,
-                };
+                        error: Some(e),
-            }
+                    }
-            let date = from_excel_date(value as i64);
+                }
+            };
             for token in tokens {
                 match token {
                     TextToken::Literal(c) => {

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) => {
+            Ok(c) => c.floor() as i64,
-                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
-            }
             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) => {
+            Ok(c) => c.floor() as i64,
-                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
-            }
             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 {
+                t as i32
-                    return CalcResult::Error {
-                        error: Error::NUM,
-                        origin: cell,
-                        message: "Out of range parameters for date".to_string(),
-                    };
-                }
-                t as u32
             }
             Err(s) => return s,
         };
         let day = match self.get_number(&args[2], cell) {
             Ok(c) => {
                 let t = c.floor();
-                if t < 0.0 {
+                t as i32
-                    return CalcResult::Error {
-                        error: Error::NUM,
-                        origin: cell,
-                        message: "Out of range parameters for date".to_string(),
-                    };
-                }
-                t as u32
             }
             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) => {
+            Ok(c) => c.floor() as i64,
-                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
-            }
             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) => {
+            Ok(c) => c.floor() as i64,
-                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
-            }
             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,

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) {
+        let value = self.get_string(node, cell)?;
-            Ok(s) => s,
-            Err(s) => return Err(s),
-        };
         if value.is_empty() {
             return Ok((0.0, 0.0, Suffix::I));
         }

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_less_than_one_year(start_date: i64, end_date: i64) -> Result<bool, String> {
-fn is_valid_date(date: f64) -> bool {
+    let end = from_excel_date(end_date)?;
-    date > 0.0
+    let start = from_excel_date(start_date)?;
-}
-
-fn is_less_than_one_year(start_date: i64, end_date: i64) -> bool {
     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) {
+        let less_than_one_year = match is_less_than_one_year(settlement as i64, maturity as i64) {
-            return CalcResult::new_error(Error::NUM, cell, "Invalid date".to_string());
+            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) {
+        let less_than_one_year = match is_less_than_one_year(settlement as i64, maturity as i64) {
-            return CalcResult::new_error(Error::NUM, cell, "Invalid date".to_string());
+            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) {
+        let less_than_one_year = match is_less_than_one_year(settlement as i64, maturity as i64) {
-            return CalcResult::new_error(Error::NUM, cell, "Invalid date".to_string());
+            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,

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);

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),

base/src/model.rs

@@ -960,10 +960,7 @@ impl Model {
                 }
             }
         }
-        let sheet = match self.get_sheet_index_by_name(&sheet_name) {
+        let sheet = self.get_sheet_index_by_name(&sheet_name)?;
-            Some(s) => s,
-            None => return None,
-        };
         let row = match row.parse::<i32>() {
             Ok(r) => r,
             Err(_) => return None,
@@ -1875,12 +1872,29 @@ impl Model {
     }
 
     /// Returns the style for cell (`sheet`, `row`, `column`)
+    /// If the cell does not have a style defined we check the row, otherwise the column and finally a default
     pub fn get_style_for_cell(&self, sheet: u32, row: i32, column: i32) -> Result<Style, String> {
         let style_index = self.get_cell_style_index(sheet, row, column)?;
         let style = self.workbook.styles.get_style(style_index)?;
         Ok(style)
     }
 
+    /// Returns the style defined in a cell if any.
+    pub fn get_cell_style_or_none(
+        &self,
+        sheet: u32,
+        row: i32,
+        column: i32,
+    ) -> Result<Option<Style>, String> {
+        let style = self
+            .workbook
+            .worksheet(sheet)?
+            .cell(row, column)
+            .map(|c| self.workbook.styles.get_style(c.get_style()))
+            .transpose();
+        style
+    }
+
     /// Returns an internal binary representation of the workbook
     ///
     /// See also:
@@ -2164,6 +2178,73 @@ impl Model {
             Err("Defined name not found".to_string())
         }
     }
+    /// Returns the style object of a column, if any
+    pub fn get_column_style(&self, sheet: u32, column: i32) -> Result<Option<Style>, String> {
+        if let Some(worksheet) = self.workbook.worksheets.get(sheet as usize) {
+            let cols = &worksheet.cols;
+            for col in cols {
+                if column >= col.min && column <= col.max {
+                    if let Some(style_index) = col.style {
+                        let style = self.workbook.styles.get_style(style_index)?;
+                        return Ok(Some(style));
+                    }
+                    return Ok(None);
+                }
+            }
+            Ok(None)
+        } else {
+            Err("Invalid sheet".to_string())
+        }
+    }
+
+    /// Returns the style object of a row, if any
+    pub fn get_row_style(&self, sheet: u32, row: i32) -> Result<Option<Style>, String> {
+        if let Some(worksheet) = self.workbook.worksheets.get(sheet as usize) {
+            let rows = &worksheet.rows;
+            for r in rows {
+                if row == r.r {
+                    let style = self.workbook.styles.get_style(r.s)?;
+                    return Ok(Some(style));
+                }
+            }
+            Ok(None)
+        } else {
+            Err("Invalid sheet".to_string())
+        }
+    }
+
+    /// Sets a column with style
+    pub fn set_column_style(
+        &mut self,
+        sheet: u32,
+        column: i32,
+        style: &Style,
+    ) -> Result<(), String> {
+        let style_index = self.workbook.styles.get_style_index_or_create(style);
+        self.workbook
+            .worksheet_mut(sheet)?
+            .set_column_style(column, style_index)
+    }
+
+    /// Sets a row with style
+    pub fn set_row_style(&mut self, sheet: u32, row: i32, style: &Style) -> Result<(), String> {
+        let style_index = self.workbook.styles.get_style_index_or_create(style);
+        self.workbook
+            .worksheet_mut(sheet)?
+            .set_row_style(row, style_index)
+    }
+
+    /// Deletes the style of a column if the is any
+    pub fn delete_column_style(&mut self, sheet: u32, column: i32) -> Result<(), String> {
+        self.workbook
+            .worksheet_mut(sheet)?
+            .delete_column_style(column)
+    }
+
+    /// Deletes the style of a row if there is any
+    pub fn delete_row_style(&mut self, sheet: u32, row: i32) -> Result<(), String> {
+        self.workbook.worksheet_mut(sheet)?.delete_row_style(row)
+    }
 }
 
 #[cfg(test)]

base/src/new_empty.rs

@@ -301,7 +301,7 @@ impl Model {
         };
         if sheet_index >= sheet_count {
             return Err("Sheet index too large".to_string());
-        }
+        };
         self.workbook.worksheets.remove(sheet_index as usize);
         self.reset_parsed_structures();
         Ok(())

base/src/styles.rs

@@ -4,8 +4,6 @@ use crate::{
     types::{Border, CellStyles, CellXfs, Fill, Font, NumFmt, Style, Styles},
 };
 
-// TODO: Move Styles and all related types from crate::types here
-// Not doing it right now to not have conflicts with exporter branch
 impl Styles {
     fn get_font_index(&self, font: &Font) -> Option<i32> {
         for (font_index, item) in self.fonts.iter().enumerate() {

base/src/test/mod.rs

@@ -13,6 +13,7 @@ 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;
@@ -36,11 +37,13 @@ mod test_model_cell_clear_all;
 mod test_model_is_empty_cell;
 mod test_move_formula;
 mod test_quote_prefix;
+mod test_row_column_styles;
 mod test_set_user_input;
 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;

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("A5"), *"10/10/1974");
-    assert_eq!(model._get_text("A6"), *"#NUM!");
+    assert_eq!(model._get_text("A6"), *"21/01/1975");
-    assert_eq!(model._get_text("A7"), *"#NUM!");
+    assert_eq!(model._get_text("A7"), *"10/02/1976");
-    assert_eq!(model._get_text("A8"), *"#NUM!");
+    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("A1"), *"10/12/2021");
-    assert_eq!(model._get_text("A2"), *"#NUM!");
+    assert_eq!(model._get_text("A2"), *"10/01/2023");
-    assert_eq!(model._get_text("B1"), *"#NUM!");
+    assert_eq!(model._get_text("B1"), *"30/04/2042");
-    assert_eq!(model._get_text("B2"), *"#NUM!");
+    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"), *"#NUM!");
-    assert_eq!(model._get_text("A2"), *"30");
     // 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"), *"#NUM!");
-    assert_eq!(model._get_text("A2"), *"12");
     // 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"), *"#NUM!");
-    assert_eq!(model._get_text("A2"), *"1899");
 
     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");

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");
+}

base/src/test/test_row_column_styles.rs

@@ -0,0 +1,32 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::{constants::DEFAULT_COLUMN_WIDTH, test::util::new_empty_model};
+
+#[test]
+fn test_model_set_cells_with_values_styles() {
+    let mut model = new_empty_model();
+
+    let style_base = model.get_style_for_cell(0, 1, 1).unwrap();
+    let mut style = style_base.clone();
+    style.font.b = true;
+
+    model.set_column_style(0, 10, &style).unwrap();
+
+    assert!(model.get_style_for_cell(0, 21, 10).unwrap().font.b);
+
+    model.delete_column_style(0, 10).unwrap();
+
+    // There are no styles in the column
+    assert!(model.workbook.worksheets[0].cols.is_empty());
+
+    // lets change the column width and check it does not affect the style
+    model
+        .set_column_width(0, 10, DEFAULT_COLUMN_WIDTH * 2.0)
+        .unwrap();
+    model.set_column_style(0, 10, &style).unwrap();
+
+    model.delete_column_style(0, 10).unwrap();
+
+    // There are no styles in the column
+    assert!(model.workbook.worksheets[0].cols.len() == 1);
+}

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)");
+}

base/src/test/user_model/mod.rs

@@ -3,7 +3,9 @@ mod test_autofill_columns;
 mod test_autofill_rows;
 mod test_border;
 mod test_clear_cells;
+mod test_column_style;
 mod test_defined_names;
+mod test_delete_row_column_formatting;
 mod test_diff_queue;
 mod test_evaluation;
 mod test_general;
@@ -13,9 +15,11 @@ mod test_on_area_selection;
 mod test_on_expand_selected_range;
 mod test_on_paste_styles;
 mod test_paste_csv;
+mod test_recursive;
 mod test_rename_sheet;
 mod test_row_column;
 mod test_sheet_state;
+mod test_sheets_undo_redo;
 mod test_styles;
 mod test_to_from_bytes;
 mod test_undo_redo;

base/src/test/user_model/test_add_delete_sheets.rs

@@ -9,7 +9,7 @@ fn add_undo_redo() {
     model.set_user_input(1, 1, 1, "=1 + 1").unwrap();
     model.set_user_input(1, 1, 2, "=A1*3").unwrap();
     model
-        .set_column_width(1, 5, 5.0 * DEFAULT_COLUMN_WIDTH)
+        .set_columns_width(1, 5, 5, 5.0 * DEFAULT_COLUMN_WIDTH)
         .unwrap();
     model.new_sheet().unwrap();
     model.set_user_input(2, 1, 1, "=Sheet2!B1").unwrap();
@@ -25,9 +25,6 @@ fn add_undo_redo() {
     assert_eq!(model.get_formatted_cell_value(2, 1, 1), Ok("6".to_string()));
 
     model.delete_sheet(1).unwrap();
-
-    assert!(!model.can_undo());
-    assert!(!model.can_redo());
 }
 
 #[test]

base/src/test/user_model/test_border.rs

@@ -520,14 +520,19 @@ fn borders_top() {
     .unwrap();
     model.set_area_with_border(range, &border_area).unwrap();
     check_borders(&model);
-    for row in 5..9 {
+    for row in 4..9 {
         for column in 6..9 {
             let style = model.get_cell_style(0, row, column).unwrap();
             let border_item = BorderItem {
                 style: BorderStyle::Thin,
                 color: Some("#FF5566".to_string()),
             };
-            let bottom = if row == 8 {
+            let bottom = if row != 4 {
+                None
+            } else {
+                Some(border_item.clone())
+            };
+            let top = if row != 5 {
                 None
             } else {
                 Some(border_item.clone())
@@ -537,7 +542,7 @@ fn borders_top() {
                 diagonal_down: false,
                 left: None,
                 right: None,
-                top: Some(border_item.clone()),
+                top,
                 bottom,
                 diagonal: None,
             };
@@ -647,12 +652,12 @@ fn borders_right() {
                 style: BorderStyle::Thin,
                 color: Some("#FF5566".to_string()),
             };
-            let left = if column == 6 {
+            let left = if column != 9 {
                 None
             } else {
                 Some(border_item.clone())
             };
-            let right = if column == 9 {
+            let right = if column != 8 {
                 None
             } else {
                 Some(border_item.clone())
@@ -705,7 +710,7 @@ fn borders_bottom() {
                 color: Some("#FF5566".to_string()),
             };
             // The top will also have a value for all but the first one
-            let top = if row == 5 {
+            let bottom = if row != 8 {
                 None
             } else {
                 Some(border_item.clone())
@@ -715,8 +720,8 @@ fn borders_bottom() {
                 diagonal_down: false,
                 left: None,
                 right: None,
-                top,
+                top: None,
-                bottom: Some(border_item.clone()),
+                bottom,
                 diagonal: None,
             };
             assert_eq!(style.border, expected_border);
@@ -751,18 +756,13 @@ fn borders_left() {
     model.set_area_with_border(range, &border_area).unwrap();
 
     for row in 5..9 {
-        for column in 5..9 {
+        for column in 6..9 {
             let style = model.get_cell_style(0, row, column).unwrap();
             let border_item = BorderItem {
                 style: BorderStyle::Thin,
                 color: Some("#FF5566".to_string()),
             };
-            let left = if column == 5 {
+            let left = if column != 6 {
-                None
-            } else {
-                Some(border_item.clone())
-            };
-            let right = if column == 8 {
                 None
             } else {
                 Some(border_item.clone())
@@ -771,13 +771,29 @@ fn borders_left() {
                 diagonal_up: false,
                 diagonal_down: false,
                 left,
-                right,
+                right: None,
                 top: None,
                 bottom: None,
                 diagonal: None,
             };
             assert_eq!(style.border, expected_border);
         }
+        // Column 5 has a border to the right, of course:
+        let style = model.get_cell_style(0, row, 5).unwrap();
+        let border_item = BorderItem {
+            style: BorderStyle::Thin,
+            color: Some("#FF5566".to_string()),
+        };
+        let expected_border = Border {
+            diagonal_up: false,
+            diagonal_down: false,
+            left: None,
+            right: Some(border_item.clone()),
+            top: None,
+            bottom: None,
+            diagonal: None,
+        };
+        assert_eq!(style.border, expected_border);
     }
 }
 
@@ -1018,10 +1034,7 @@ fn border_top() {
         style: BorderStyle::Thin,
         color: Some("#F2F2F2".to_string()),
     };
-    assert_eq!(
+    assert_eq!(model._get_cell_actual_border("C4").top, Some(border_item));
-        model._get_cell_actual_border("C4").bottom,
-        Some(border_item)
-    );
 
     model.undo().unwrap();
 

base/src/test/user_model/test_column_style.rs

@@ -0,0 +1,504 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::constants::{DEFAULT_COLUMN_WIDTH, DEFAULT_ROW_HEIGHT, LAST_COLUMN, LAST_ROW};
+use crate::expressions::types::Area;
+use crate::UserModel;
+
+#[test]
+fn column_width() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    let range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let style = model.get_cell_style(0, 1, 1).unwrap();
+    assert!(!style.font.i);
+    assert!(!style.font.b);
+    assert!(!style.font.u);
+    assert!(!style.font.strike);
+    assert_eq!(style.font.color, Some("#000000".to_owned()));
+
+    // Set the whole column style and check it works
+    model.update_range_style(&range, "font.b", "true").unwrap();
+    let style = model.get_cell_style(0, 109, 7).unwrap();
+    assert!(style.font.b);
+
+    // undo and check it works
+    model.undo().unwrap();
+    let style = model.get_cell_style(0, 109, 7).unwrap();
+    assert!(!style.font.b);
+
+    // redo and check it works
+    model.redo().unwrap();
+    let style = model.get_cell_style(0, 109, 7).unwrap();
+    assert!(style.font.b);
+
+    // change the column width and check it does not affect the style
+    model
+        .set_columns_width(0, 7, 7, DEFAULT_COLUMN_WIDTH * 2.0)
+        .unwrap();
+    let style = model.get_cell_style(0, 109, 7).unwrap();
+    assert!(style.font.b);
+}
+
+#[test]
+fn existing_style() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+
+    let cell_g123 = Area {
+        sheet: 0,
+        row: 123,
+        column: 7,
+        width: 1,
+        height: 1,
+    };
+
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    // Set G123 background to red
+    model
+        .update_range_style(&cell_g123, "fill.bg_color", "#333444")
+        .unwrap();
+
+    // Now set the style of the whole column
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#555666")
+        .unwrap();
+
+    // Get the style of G123
+    let style = model.get_cell_style(0, 123, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#555666".to_owned()));
+
+    model.undo().unwrap();
+
+    // Check the style of G123 is now what it was before
+    let style = model.get_cell_style(0, 123, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#333444".to_owned()));
+
+    model.redo().unwrap();
+
+    // Check G123 has the column style now
+    let style = model.get_cell_style(0, 123, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#555666".to_owned()));
+}
+
+#[test]
+fn row_column() {
+    // We set the row style, then a column style
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let row_3_range = Area {
+        sheet: 0,
+        row: 3,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    // update the row style
+    model
+        .update_range_style(&row_3_range, "fill.bg_color", "#333444")
+        .unwrap();
+
+    // update the column style
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#555666")
+        .unwrap();
+
+    // Check G3 has the column style
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#555666".to_owned()));
+
+    // undo twice. Color must be default
+    model.undo().unwrap();
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#333444".to_owned()));
+    model.undo().unwrap();
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+}
+
+#[test]
+fn column_row() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+
+    let default_style = model.get_cell_style(0, 3, 7).unwrap();
+
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let row_3_range = Area {
+        sheet: 0,
+        row: 3,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    // update the column style
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#555666")
+        .unwrap();
+
+    // update the row style
+    model
+        .update_range_style(&row_3_range, "fill.bg_color", "#333444")
+        .unwrap();
+
+    // Check G3 has the row style
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#333444".to_owned()));
+
+    model.undo().unwrap();
+
+    // Check G3 has the column style
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#555666".to_owned()));
+
+    model.undo().unwrap();
+
+    // Check G3 has the default_style
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, default_style.fill.bg_color);
+}
+
+#[test]
+fn row_column_column() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+
+    let column_c_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 3,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let column_e_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 5,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let row_5_range = Area {
+        sheet: 0,
+        row: 5,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    // update the row style
+    model
+        .update_range_style(&row_5_range, "fill.bg_color", "#333444")
+        .unwrap();
+
+    // update the column style
+    model
+        .update_range_style(&column_c_range, "fill.bg_color", "#555666")
+        .unwrap();
+
+    model
+        .update_range_style(&column_e_range, "fill.bg_color", "#CCC111")
+        .unwrap();
+
+    model.undo().unwrap();
+    model.undo().unwrap();
+    model.undo().unwrap();
+
+    // Test E5 has the default style
+    let style = model.get_cell_style(0, 5, 5).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+}
+
+#[test]
+fn width_column_undo() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+
+    model
+        .set_columns_width(0, 7, 7, DEFAULT_COLUMN_WIDTH * 2.0)
+        .unwrap();
+
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#CCC111")
+        .unwrap();
+
+    model.undo().unwrap();
+
+    assert_eq!(
+        model.get_column_width(0, 7).unwrap(),
+        DEFAULT_COLUMN_WIDTH * 2.0
+    );
+}
+
+#[test]
+fn height_row_undo() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model
+        .set_rows_height(0, 10, 10, DEFAULT_ROW_HEIGHT * 2.0)
+        .unwrap();
+
+    let row_10_range = Area {
+        sheet: 0,
+        row: 10,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    model
+        .update_range_style(&row_10_range, "fill.bg_color", "#CCC111")
+        .unwrap();
+
+    assert_eq!(
+        model.get_row_height(0, 10).unwrap(),
+        2.0 * DEFAULT_ROW_HEIGHT
+    );
+    model.undo().unwrap();
+    assert_eq!(
+        model.get_row_height(0, 10).unwrap(),
+        2.0 * DEFAULT_ROW_HEIGHT
+    );
+    model.undo().unwrap();
+    assert_eq!(model.get_row_height(0, 10).unwrap(), DEFAULT_ROW_HEIGHT);
+}
+
+#[test]
+fn cell_row_undo() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    let cell_g12 = Area {
+        sheet: 0,
+        row: 12,
+        column: 7,
+        width: 1,
+        height: 1,
+    };
+
+    let row_12_range = Area {
+        sheet: 0,
+        row: 12,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    // Set G12 background to red
+    model
+        .update_range_style(&cell_g12, "fill.bg_color", "#333444")
+        .unwrap();
+
+    model
+        .update_range_style(&row_12_range, "fill.bg_color", "#CCC111")
+        .unwrap();
+
+    let style = model.get_cell_style(0, 12, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#CCC111".to_string()));
+    model.undo().unwrap();
+
+    let style = model.get_cell_style(0, 12, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#333444".to_string()));
+}
+
+#[test]
+fn set_column_style_then_cell() {
+    // We check that if we set a cell style in a column that already has a style
+    // the styles compound
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    let cell_g12 = Area {
+        sheet: 0,
+        row: 12,
+        column: 7,
+        width: 1,
+        height: 1,
+    };
+
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    // Set G12 background to red
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#333444")
+        .unwrap();
+
+    model
+        .update_range_style(&cell_g12, "alignment.horizontal", "center")
+        .unwrap();
+
+    let style = model.get_cell_style(0, 12, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#333444".to_string()));
+
+    model.undo().unwrap();
+    model.undo().unwrap();
+    let style = model.get_cell_style(0, 12, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+}
+
+#[test]
+fn set_row_style_then_cell() {
+    // We check that if we set a cell style in a column that already has a style
+    // the styles compound
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    let cell_g12 = Area {
+        sheet: 0,
+        row: 12,
+        column: 7,
+        width: 1,
+        height: 1,
+    };
+
+    let row_12_range = Area {
+        sheet: 0,
+        row: 12,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    // Set G12 background to red
+    model
+        .update_range_style(&row_12_range, "fill.bg_color", "#333444")
+        .unwrap();
+
+    model
+        .update_range_style(&cell_g12, "alignment.horizontal", "center")
+        .unwrap();
+
+    let style = model.get_cell_style(0, 12, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#333444".to_string()));
+}
+
+#[test]
+fn column_style_then_row_alignment() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+    let row_3_range = Area {
+        sheet: 0,
+        row: 3,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#555666")
+        .unwrap();
+    model
+        .update_range_style(&row_3_range, "alignment.horizontal", "center")
+        .unwrap();
+    // check the row alignment does not affect the column style
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#555666".to_string()));
+}
+
+#[test]
+fn column_style_then_width() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#555666")
+        .unwrap();
+    model
+        .set_columns_width(0, 7, 7, DEFAULT_COLUMN_WIDTH * 2.0)
+        .unwrap();
+
+    // Check column width worked:
+    assert_eq!(
+        model.get_column_width(0, 7).unwrap(),
+        DEFAULT_COLUMN_WIDTH * 2.0
+    );
+}
+
+#[test]
+fn test_row_column_column() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+
+    let column_c_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 3,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let column_e_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 5,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let row_5_range = Area {
+        sheet: 0,
+        row: 5,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    // update the row style
+    model
+        .update_range_style(&row_5_range, "fill.bg_color", "#333444")
+        .unwrap();
+
+    // update the column style
+    model
+        .update_range_style(&column_c_range, "fill.bg_color", "#555666")
+        .unwrap();
+
+    model
+        .update_range_style(&column_e_range, "fill.bg_color", "#CCC111")
+        .unwrap();
+
+    // test E5 has the column style
+    let style = model.get_cell_style(0, 5, 5).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#CCC111".to_string()));
+}

base/src/test/user_model/test_defined_names.rs

@@ -396,3 +396,30 @@ fn undo_redo() {
         Ok("Hola!".to_string())
     );
 }
+
+#[test]
+fn change_scope_to_first_sheet() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model.new_sheet().unwrap();
+    model.set_user_input(0, 1, 1, "Hello").unwrap();
+    model
+        .set_user_input(1, 2, 1, r#"=CONCATENATE(MyName, " world!")"#)
+        .unwrap();
+    model
+        .new_defined_name("myName", None, "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(1, 2, 1),
+        Ok("Hello world!".to_string())
+    );
+
+    model
+        .update_defined_name("myName", None, "myName", Some(0), "Sheet1!$A$1")
+        .unwrap();
+
+    assert_eq!(
+        model.get_formatted_cell_value(1, 2, 1),
+        Ok("#NAME?".to_string())
+    );
+}

base/src/test/user_model/test_delete_row_column_formatting.rs

@@ -0,0 +1,243 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::{
+    constants::{DEFAULT_COLUMN_WIDTH, DEFAULT_ROW_HEIGHT, LAST_COLUMN, LAST_ROW},
+    expressions::types::Area,
+    UserModel,
+};
+
+#[test]
+fn delete_column_formatting() {
+    // We are going to delete formatting in column G (7)
+    // There are cells with their own styles
+    // There are rows with their own styles
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    let cell_g123 = Area {
+        sheet: 0,
+        row: 123,
+        column: 7,
+        width: 1,
+        height: 1,
+    };
+
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let row_3_range = Area {
+        sheet: 0,
+        row: 3,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    // Set the style of the whole column
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#555666")
+        .unwrap();
+
+    // Set G123 background to red
+    model
+        .update_range_style(&cell_g123, "fill.bg_color", "#FF5533")
+        .unwrap();
+
+    // Set the style of the whole row
+    model
+        .update_range_style(&row_3_range, "fill.bg_color", "#333444")
+        .unwrap();
+
+    // Delete the column formatting
+    model.range_clear_formatting(&column_g_range).unwrap();
+
+    // Check the style of G123 is now what it was before
+    let style = model.get_cell_style(0, 123, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+
+    // Check the style of the whole row is still there
+    let style = model.get_cell_style(0, 3, 1).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#333444".to_owned()));
+
+    // Check the style of the whole column is now gone
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+
+    let style = model.get_cell_style(0, 40, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+
+    model.undo().unwrap();
+
+    // Check the style of G123 is now what it was before
+    let style = model.get_cell_style(0, 123, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#FF5533".to_owned()));
+
+    // Check G3 is the row style
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#333444".to_owned()));
+
+    // Check G40 is the column style
+    let style = model.get_cell_style(0, 40, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#555666".to_owned()));
+
+    model.redo().unwrap();
+
+    // Check the style of G123 is now what it was before
+    let style = model.get_cell_style(0, 123, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+
+    // Check the style of the whole row is still there
+    let style = model.get_cell_style(0, 3, 1).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#333444".to_owned()));
+
+    // Check the style of the whole column is now gone
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+
+    let style = model.get_cell_style(0, 40, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+}
+
+#[test]
+fn column_width() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model
+        .set_columns_width(0, 7, 7, DEFAULT_COLUMN_WIDTH * 2.0)
+        .unwrap();
+
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    // Set the style of the whole column
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#555666")
+        .unwrap();
+
+    // Delete the column formatting
+    model.range_clear_formatting(&column_g_range).unwrap();
+    // This does not change the column width
+    assert_eq!(
+        model.get_column_width(0, 7).unwrap(),
+        2.0 * DEFAULT_COLUMN_WIDTH
+    );
+
+    model.undo().unwrap();
+    assert_eq!(
+        model.get_column_width(0, 7).unwrap(),
+        2.0 * DEFAULT_COLUMN_WIDTH
+    );
+    model.redo().unwrap();
+    assert_eq!(
+        model.get_column_width(0, 7).unwrap(),
+        2.0 * DEFAULT_COLUMN_WIDTH
+    );
+}
+
+#[test]
+fn column_row_style_undo() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    model
+        .set_columns_width(0, 7, 7, DEFAULT_COLUMN_WIDTH * 2.0)
+        .unwrap();
+
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let row_123_range = Area {
+        sheet: 0,
+        row: 123,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    let delete_range = Area {
+        sheet: 0,
+        row: 120,
+        column: 5,
+        width: 20,
+        height: 20,
+    };
+
+    // Set the style of the whole column
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#555666")
+        .unwrap();
+
+    model
+        .update_range_style(&row_123_range, "fill.bg_color", "#111222")
+        .unwrap();
+
+    model.range_clear_formatting(&delete_range).unwrap();
+
+    // check G123 is empty
+    let style = model.get_cell_style(0, 123, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+
+    // uno clear formatting
+    model.undo().unwrap();
+
+    // G123 has the row style
+    let style = model.get_cell_style(0, 123, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#111222".to_owned()));
+
+    // undo twice
+    model.undo().unwrap();
+    model.undo().unwrap();
+
+    // check G123 is empty
+    let style = model.get_cell_style(0, 123, 7).unwrap();
+    assert_eq!(style.fill.bg_color, None);
+}
+
+#[test]
+fn column_row_row_height_undo() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    let row_3_range = Area {
+        sheet: 0,
+        row: 3,
+        column: 1,
+        width: LAST_COLUMN,
+        height: 1,
+    };
+
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#555666")
+        .unwrap();
+
+    model
+        .set_rows_height(0, 3, 3, DEFAULT_ROW_HEIGHT * 2.0)
+        .unwrap();
+
+    model
+        .update_range_style(&row_3_range, "fill.bg_color", "#111222")
+        .unwrap();
+
+    model.undo().unwrap();
+
+    // check G3 has the column style
+    let style = model.get_cell_style(0, 3, 7).unwrap();
+    assert_eq!(style.fill.bg_color, Some("#555666".to_string()));
+}

base/src/test/user_model/test_diff_queue.rs

@@ -10,7 +10,7 @@ use crate::{
 fn send_queue() {
     let mut model1 = UserModel::from_model(new_empty_model());
     let width = model1.get_column_width(0, 3).unwrap() * 3.0;
-    model1.set_column_width(0, 3, width).unwrap();
+    model1.set_columns_width(0, 3, 3, width).unwrap();
     model1.set_user_input(0, 1, 2, "Hello IronCalc!").unwrap();
     let send_queue = model1.flush_send_queue();
 
@@ -34,7 +34,7 @@ fn apply_external_diffs_wrong_str() {
 fn queue_undo_redo() {
     let mut model1 = UserModel::from_model(new_empty_model());
     let width = model1.get_column_width(0, 3).unwrap() * 3.0;
-    model1.set_column_width(0, 3, width).unwrap();
+    model1.set_columns_width(0, 3, 3, width).unwrap();
     model1.set_user_input(0, 1, 2, "Hello IronCalc!").unwrap();
     assert!(model1.undo().is_ok());
     assert!(model1.redo().is_ok());
@@ -57,8 +57,8 @@ fn queue_undo_redo_multiple() {
     // do a bunch of things
     model1.set_frozen_columns_count(0, 5).unwrap();
     model1.set_frozen_rows_count(0, 6).unwrap();
-    model1.set_column_width(0, 7, 300.0).unwrap();
+    model1.set_columns_width(0, 7, 7, 300.0).unwrap();
-    model1.set_row_height(0, 23, 123.0).unwrap();
+    model1.set_rows_height(0, 23, 23, 123.0).unwrap();
     model1.set_user_input(0, 55, 55, "=42+8").unwrap();
 
     for row in 1..5 {

base/src/test/user_model/test_general.rs

@@ -59,7 +59,7 @@ fn insert_remove_rows() {
     // Insert some data in row 5 (and change the style)
     assert!(model.set_user_input(0, 5, 1, "100$").is_ok());
     // Change the height of the column
-    assert!(model.set_row_height(0, 5, 3.0 * height).is_ok());
+    assert!(model.set_rows_height(0, 5, 5, 3.0 * height).is_ok());
 
     // remove the row
     assert!(model.delete_row(0, 5).is_ok());
@@ -95,7 +95,7 @@ fn insert_remove_columns() {
     // Insert some data in row 5 (and change the style) in E1
     assert!(model.set_user_input(0, 1, 5, "100$").is_ok());
     // Change the width of the column
-    assert!(model.set_column_width(0, 5, 3.0 * column_width).is_ok());
+    assert!(model.set_columns_width(0, 5, 5, 3.0 * column_width).is_ok());
     assert_eq!(model.get_column_width(0, 5).unwrap(), 3.0 * column_width);
 
     // remove the column

base/src/test/user_model/test_recursive.rs

@@ -0,0 +1,42 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::{
+    constants::LAST_ROW, expressions::types::Area, test::util::new_empty_model, UserModel,
+};
+
+#[test]
+fn two_columns() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+
+    // Set style in column C (column 3)
+    let column_c_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 3,
+        width: 1,
+        height: LAST_ROW,
+    };
+    model
+        .update_range_style(&column_c_range, "fill.bg_color", "#333444")
+        .unwrap();
+    model.set_user_input(0, 5, 3, "2").unwrap();
+
+    // Set Style in column G (column 7)
+    let column_g_range = Area {
+        sheet: 0,
+        row: 1,
+        column: 7,
+        width: 1,
+        height: LAST_ROW,
+    };
+
+    model
+        .update_range_style(&column_g_range, "fill.bg_color", "#333444")
+        .unwrap();
+    model.set_user_input(0, 5, 6, "42").unwrap();
+    // Set formula in G5: =F5*C5
+    model.set_user_input(0, 5, 7, "=F5*C5").unwrap();
+
+    assert_eq!(model.get_formatted_cell_value(0, 5, 7).unwrap(), "84");
+}

base/src/test/user_model/test_row_column.rs

@@ -59,7 +59,7 @@ fn simple_delete_column() {
     model.set_user_input(0, 1, 5, "3").unwrap();
     model.set_user_input(0, 2, 5, "=E1*2").unwrap();
     model
-        .set_column_width(0, 5, DEFAULT_COLUMN_WIDTH * 3.0)
+        .set_columns_width(0, 5, 5, DEFAULT_COLUMN_WIDTH * 3.0)
         .unwrap();
 
     model.delete_column(0, 5).unwrap();
@@ -116,7 +116,7 @@ fn simple_delete_row() {
     model.set_user_input(0, 15, 6, "=D15*2").unwrap();
 
     model
-        .set_row_height(0, 15, DEFAULT_ROW_HEIGHT * 3.0)
+        .set_rows_height(0, 15, 15, DEFAULT_ROW_HEIGHT * 3.0)
         .unwrap();
 
     model.delete_row(0, 15).unwrap();
@@ -170,5 +170,44 @@ fn row_heigh_increases_automatically() {
     model
         .set_user_input(0, 1, 1, "My home in Canada had horses\nAnd monkeys!")
         .unwrap();
-    assert_eq!(model.get_row_height(0, 1), Ok(2.0 * DEFAULT_ROW_HEIGHT));
+    assert_eq!(model.get_row_height(0, 1), Ok(40.5));
+}
+
+#[test]
+fn insert_row_evaluates() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    model.set_user_input(0, 1, 1, "42").unwrap();
+    model.set_user_input(0, 1, 2, "=A1*2").unwrap();
+
+    assert!(model.insert_row(0, 1).is_ok());
+    assert_eq!(model.get_formatted_cell_value(0, 2, 2).unwrap(), "84");
+    model.undo().unwrap();
+    assert_eq!(model.get_formatted_cell_value(0, 1, 2).unwrap(), "84");
+    model.redo().unwrap();
+    assert_eq!(model.get_formatted_cell_value(0, 2, 2).unwrap(), "84");
+
+    model.delete_row(0, 1).unwrap();
+    assert_eq!(model.get_formatted_cell_value(0, 1, 2).unwrap(), "84");
+    assert_eq!(model.get_cell_content(0, 1, 2).unwrap(), "=A1*2");
+}
+
+#[test]
+fn insert_column_evaluates() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    model.set_user_input(0, 1, 1, "42").unwrap();
+    model.set_user_input(0, 10, 1, "=A1*2").unwrap();
+
+    assert!(model.insert_column(0, 1).is_ok());
+    assert_eq!(model.get_formatted_cell_value(0, 10, 2).unwrap(), "84");
+
+    model.undo().unwrap();
+    assert_eq!(model.get_formatted_cell_value(0, 10, 1).unwrap(), "84");
+    model.redo().unwrap();
+    assert_eq!(model.get_formatted_cell_value(0, 10, 2).unwrap(), "84");
+
+    model.delete_column(0, 1).unwrap();
+    assert_eq!(model.get_formatted_cell_value(0, 10, 1).unwrap(), "84");
+    assert_eq!(model.get_cell_content(0, 10, 1).unwrap(), "=A1*2");
 }

base/src/test/user_model/test_sheets_undo_redo.rs

@@ -0,0 +1,52 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::test::util::new_empty_model;
+use crate::UserModel;
+
+#[test]
+fn basic_undo_redo() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    assert_eq!(model.get_selected_sheet(), 0);
+
+    model.new_sheet().unwrap();
+    assert_eq!(model.get_selected_sheet(), 1);
+    model.undo().unwrap();
+    assert_eq!(model.get_selected_sheet(), 0);
+    {
+        let props = model.get_worksheets_properties();
+        assert_eq!(props.len(), 1);
+        let view = model.get_selected_view();
+        assert_eq!(view.sheet, 0);
+    }
+
+    model.redo().unwrap();
+    assert_eq!(model.get_selected_sheet(), 1);
+    {
+        let props = model.get_worksheets_properties();
+        assert_eq!(props.len(), 2);
+        let view = model.get_selected_view();
+
+        assert_eq!(view.sheet, 1);
+    }
+}
+
+#[test]
+fn delete_undo() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    assert_eq!(model.get_selected_sheet(), 0);
+
+    model.new_sheet().unwrap();
+    assert_eq!(model.get_selected_sheet(), 1);
+    model.set_user_input(1, 1, 1, "42").unwrap();
+    model.set_user_input(1, 1, 2, "=A1*2").unwrap();
+    model.delete_sheet(1).unwrap();
+
+    assert_eq!(model.get_selected_sheet(), 0);
+
+    model.undo().unwrap();
+    assert_eq!(model.get_selected_sheet(), 1);
+    model.redo().unwrap();
+    assert_eq!(model.get_selected_sheet(), 0);
+}

base/src/test/user_model/test_styles.rs

@@ -436,3 +436,47 @@ fn false_removes_value() {
     let style = model.get_cell_style(0, 1, 1).unwrap();
     assert!(!style.font.b);
 }
+
+#[test]
+fn cell_clear_formatting() {
+    let mut model = UserModel::new_empty("model", "en", "UTC").unwrap();
+    let range = Area {
+        sheet: 0,
+        row: 1,
+        column: 1,
+        width: 1,
+        height: 1,
+    };
+
+    // bold
+    model.update_range_style(&range, "font.b", "true").unwrap();
+    model
+        .update_range_style(&range, "alignment.horizontal", "centerContinuous")
+        .unwrap();
+
+    let style = model.get_cell_style(0, 1, 1).unwrap();
+    assert!(style.font.b);
+    assert_eq!(
+        style.alignment.unwrap().horizontal,
+        HorizontalAlignment::CenterContinuous
+    );
+
+    model.range_clear_all(&range).unwrap();
+    let style = model.get_cell_style(0, 1, 1).unwrap();
+    assert!(!style.font.b);
+    assert_eq!(style.alignment, None);
+
+    model.undo().unwrap();
+
+    let style = model.get_cell_style(0, 1, 1).unwrap();
+    assert!(style.font.b);
+    assert_eq!(
+        style.alignment.unwrap().horizontal,
+        HorizontalAlignment::CenterContinuous
+    );
+    model.redo().unwrap();
+
+    let style = model.get_cell_style(0, 1, 1).unwrap();
+    assert!(!style.font.b);
+    assert_eq!(style.alignment, None);
+}

base/src/test/user_model/test_to_from_bytes.rs

@@ -6,7 +6,7 @@ use crate::{test::util::new_empty_model, UserModel};
 fn basic() {
     let mut model1 = UserModel::from_model(new_empty_model());
     let width = model1.get_column_width(0, 3).unwrap() * 3.0;
-    model1.set_column_width(0, 3, width).unwrap();
+    model1.set_columns_width(0, 3, 3, width).unwrap();
     model1.set_user_input(0, 1, 2, "Hello IronCalc!").unwrap();
 
     let model_bytes = model1.to_bytes();

base/src/types.rs

@@ -323,6 +323,19 @@ pub struct Style {
     pub quote_prefix: bool,
 }
 
+impl Default for Style {
+    fn default() -> Self {
+        Style {
+            alignment: None,
+            num_fmt: "general".to_string(),
+            fill: Fill::default(),
+            font: Font::default(),
+            border: Border::default(),
+            quote_prefix: false,
+        }
+    }
+}
+
 #[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 pub struct NumFmt {
     pub num_fmt_id: i32,
@@ -394,7 +407,7 @@ impl Default for Font {
             u: false,
             b: false,
             i: false,
-            sz: 11,
+            sz: 13,
             color: Some("#000000".to_string()),
             name: "Calibri".to_string(),
             family: 2,

base/src/units.rs

@@ -50,8 +50,9 @@ impl Units {
 fn get_units_from_format_string(num_fmt: &str) -> Option<Units> {
     let mut parser = Parser::new(num_fmt);
     parser.parse();
+    let parts = parser.parts.first()?;
     // We only care about the first part (positive number)
-    match &parser.parts[0] {
+    match parts {
         ParsePart::Number(part) => {
             if part.percent > 0 {
                 Some(Units::Percentage {

base/src/user_model/border.rs

@@ -0,0 +1,507 @@
+use crate::{
+    constants::{LAST_COLUMN, LAST_ROW},
+    expressions::types::Area,
+};
+
+use super::{
+    border_utils::is_max_border, common::BorderType, history::Diff, BorderArea, UserModel,
+};
+
+impl UserModel {
+    fn update_single_cell_border(
+        &mut self,
+        border_area: &BorderArea,
+        cell: (u32, i32, i32),
+        range: (i32, i32, i32, i32),
+        diff_list: &mut Vec<Diff>,
+    ) -> Result<(), String> {
+        let (sheet, row, column) = cell;
+        let (first_row, first_column, last_row, last_column) = range;
+
+        let old_value = self.model.get_cell_style_or_none(sheet, row, column)?;
+        let mut new_value = match &old_value {
+            Some(value) => value.clone(),
+            None => Default::default(),
+        };
+        match border_area.r#type {
+            BorderType::All => {
+                new_value.border.top = Some(border_area.item.clone());
+                new_value.border.right = Some(border_area.item.clone());
+                new_value.border.bottom = Some(border_area.item.clone());
+                new_value.border.left = Some(border_area.item.clone());
+            }
+            BorderType::Inner => {
+                if row != first_row {
+                    new_value.border.top = Some(border_area.item.clone());
+                }
+                if row != last_row {
+                    new_value.border.bottom = Some(border_area.item.clone());
+                }
+                if column != first_column {
+                    new_value.border.left = Some(border_area.item.clone());
+                }
+                if column != last_column {
+                    new_value.border.right = Some(border_area.item.clone());
+                }
+            }
+            BorderType::Outer => {
+                if row == first_row {
+                    new_value.border.top = Some(border_area.item.clone());
+                }
+                if row == last_row {
+                    new_value.border.bottom = Some(border_area.item.clone());
+                }
+                if column == first_column {
+                    new_value.border.left = Some(border_area.item.clone());
+                }
+                if column == last_column {
+                    new_value.border.right = Some(border_area.item.clone());
+                }
+            }
+            BorderType::Top => {
+                if row == first_row {
+                    new_value.border.top = Some(border_area.item.clone());
+                }
+            }
+            BorderType::Right => {
+                if column == last_column {
+                    new_value.border.right = Some(border_area.item.clone());
+                }
+            }
+            BorderType::Bottom => {
+                if row == last_row {
+                    new_value.border.bottom = Some(border_area.item.clone());
+                }
+            }
+            BorderType::Left => {
+                if column == first_column {
+                    new_value.border.left = Some(border_area.item.clone());
+                }
+            }
+            BorderType::CenterH => {
+                if row != first_row {
+                    new_value.border.top = Some(border_area.item.clone());
+                }
+                if row != last_row {
+                    new_value.border.bottom = Some(border_area.item.clone());
+                }
+            }
+            BorderType::CenterV => {
+                if column != first_column {
+                    new_value.border.left = Some(border_area.item.clone());
+                }
+                if column != last_column {
+                    new_value.border.right = Some(border_area.item.clone());
+                }
+            }
+            BorderType::None => {
+                new_value.border.top = None;
+                new_value.border.right = None;
+                new_value.border.bottom = None;
+                new_value.border.left = None;
+            }
+        }
+        self.model.set_cell_style(sheet, row, column, &new_value)?;
+        diff_list.push(Diff::SetCellStyle {
+            sheet,
+            row,
+            column,
+            old_value: Box::new(old_value),
+            new_value: Box::new(new_value),
+        });
+        Ok(())
+    }
+
+    fn set_rows_with_border(
+        &mut self,
+        sheet: u32,
+        first_row: i32,
+        last_row: i32,
+        border_area: &BorderArea,
+    ) -> Result<(), String> {
+        let mut diff_list = Vec::new();
+        for row in first_row..=last_row {
+            let old_value = self.model.get_row_style(sheet, row)?;
+            let mut new_value = match &old_value {
+                Some(value) => value.clone(),
+                None => Default::default(),
+            };
+
+            match border_area.r#type {
+                BorderType::All => {
+                    new_value.border.top = Some(border_area.item.clone());
+                    new_value.border.right = Some(border_area.item.clone());
+                    new_value.border.bottom = Some(border_area.item.clone());
+                    new_value.border.left = Some(border_area.item.clone());
+                }
+                BorderType::Inner => {
+                    if row != first_row {
+                        new_value.border.top = Some(border_area.item.clone());
+                    }
+                    if row != last_row {
+                        new_value.border.bottom = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::Outer => {
+                    if row == first_row {
+                        new_value.border.top = Some(border_area.item.clone());
+                    }
+                    if row == last_row {
+                        new_value.border.bottom = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::Top => {
+                    if row == first_row {
+                        new_value.border.top = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::Right => {
+                    // noop
+                }
+                BorderType::Bottom => {
+                    if row == last_row {
+                        new_value.border.bottom = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::Left => {
+                    // noop
+                }
+                BorderType::CenterH => {
+                    if row != first_row {
+                        new_value.border.top = Some(border_area.item.clone());
+                    }
+                    if row != last_row {
+                        new_value.border.bottom = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::CenterV => {
+                    new_value.border.left = Some(border_area.item.clone());
+                    new_value.border.right = Some(border_area.item.clone());
+                }
+                BorderType::None => {
+                    new_value.border.top = None;
+                    new_value.border.right = None;
+                    new_value.border.bottom = None;
+                    new_value.border.left = None;
+                }
+            }
+
+            // We need to go throw each non-empty cell in the row
+            let columns: Vec<i32> = self
+                .model
+                .workbook
+                .worksheet(sheet)?
+                .sheet_data
+                .get(&row)
+                .map(|row_data| row_data.keys().copied().collect())
+                .unwrap_or_default();
+            for column in columns {
+                self.update_single_cell_border(
+                    border_area,
+                    (sheet, row, column),
+                    (first_row, 1, last_row, LAST_COLUMN),
+                    &mut diff_list,
+                )?;
+            }
+
+            self.model.set_row_style(sheet, row, &new_value)?;
+            diff_list.push(Diff::SetRowStyle {
+                sheet,
+                row,
+                old_value: Box::new(old_value),
+                new_value: Box::new(new_value),
+            });
+        }
+        // TODO: We need to check the rows above and below. also any non empty cell in the rows above and below.
+        self.push_diff_list(diff_list);
+        Ok(())
+    }
+
+    fn set_columns_with_border(
+        &mut self,
+        sheet: u32,
+        first_column: i32,
+        last_column: i32,
+        border_area: &BorderArea,
+    ) -> Result<(), String> {
+        let mut diff_list = Vec::new();
+        // We need all the rows in the column to update the style
+        // NB: This is too much, this is all the rows that have values
+        let data_rows: Vec<i32> = self
+            .model
+            .workbook
+            .worksheet(sheet)?
+            .sheet_data
+            .keys()
+            .copied()
+            .collect();
+        let styled_rows = &self.model.workbook.worksheet(sheet)?.rows.clone();
+        for column in first_column..=last_column {
+            let old_value = self.model.get_column_style(sheet, column)?;
+            let mut new_value = match &old_value {
+                Some(value) => value.clone(),
+                None => Default::default(),
+            };
+
+            match border_area.r#type {
+                BorderType::All => {
+                    new_value.border.top = Some(border_area.item.clone());
+                    new_value.border.right = Some(border_area.item.clone());
+                    new_value.border.bottom = Some(border_area.item.clone());
+                    new_value.border.left = Some(border_area.item.clone());
+                }
+                BorderType::Inner => {
+                    if column != first_column {
+                        new_value.border.left = Some(border_area.item.clone());
+                    }
+                    if column != last_column {
+                        new_value.border.right = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::Outer => {
+                    if column == first_column {
+                        new_value.border.left = Some(border_area.item.clone());
+                    }
+                    if column == last_column {
+                        new_value.border.right = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::Top => {
+                    // noop
+                }
+                BorderType::Right => {
+                    if column == last_column {
+                        new_value.border.right = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::Bottom => {
+                    // noop
+                }
+                BorderType::Left => {
+                    if column == first_column {
+                        new_value.border.left = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::CenterH => {
+                    new_value.border.top = Some(border_area.item.clone());
+                    new_value.border.bottom = Some(border_area.item.clone());
+                }
+                BorderType::CenterV => {
+                    if column != first_column {
+                        new_value.border.left = Some(border_area.item.clone());
+                    }
+                    if column != last_column {
+                        new_value.border.right = Some(border_area.item.clone());
+                    }
+                }
+                BorderType::None => {
+                    new_value.border.top = None;
+                    new_value.border.right = None;
+                    new_value.border.bottom = None;
+                    new_value.border.left = None;
+                }
+            }
+            // We need to go through each non empty cell in the column
+            for &row in &data_rows {
+                if let Some(data_row) = self.model.workbook.worksheet(sheet)?.sheet_data.get(&row) {
+                    if data_row.get(&column).is_some() {
+                        self.update_single_cell_border(
+                            border_area,
+                            (sheet, row, column),
+                            (1, first_column, LAST_ROW, last_column),
+                            &mut diff_list,
+                        )?;
+                    }
+                }
+            }
+
+            // We also need to overwrite those that have a row style
+            for row_s in styled_rows.iter() {
+                let row = row_s.r;
+                self.update_single_cell_border(
+                    border_area,
+                    (sheet, row, column),
+                    (1, first_column, LAST_ROW, last_column),
+                    &mut diff_list,
+                )?;
+            }
+
+            self.model.set_column_style(sheet, column, &new_value)?;
+            diff_list.push(Diff::SetColumnStyle {
+                sheet,
+                column,
+                old_value: Box::new(old_value),
+                new_value: Box::new(new_value),
+            });
+        }
+        // We need to check the borders of the column to the left and the column to the right
+        // We also need to check every non-empty cell in the columns to the left and right
+        self.push_diff_list(diff_list);
+        Ok(())
+    }
+
+    /// Sets the border in an area of cells.
+    /// When setting the border we need to check if the adjacent cells have a "heavier" border
+    /// If that is the case we need to change it
+    pub fn set_area_with_border(
+        &mut self,
+        range: &Area,
+        border_area: &BorderArea,
+    ) -> Result<(), String> {
+        let sheet = range.sheet;
+        let first_row = range.row;
+        let first_column = range.column;
+        let last_row = first_row + range.height - 1;
+        let last_column = first_column + range.width - 1;
+        if first_row == 1 && last_row == LAST_ROW {
+            // full columns
+            self.set_columns_with_border(sheet, first_column, last_column, border_area)?;
+            return Ok(());
+        }
+        if first_column == 1 && last_column == LAST_COLUMN {
+            // full rows
+            self.set_rows_with_border(sheet, first_row, last_row, border_area)?;
+            return Ok(());
+        }
+        let mut diff_list = Vec::new();
+        for row in first_row..=last_row {
+            for column in first_column..=last_column {
+                self.update_single_cell_border(
+                    border_area,
+                    (sheet, row, column),
+                    (first_row, first_column, last_row, last_column),
+                    &mut diff_list,
+                )?;
+            }
+        }
+
+        // bottom of the cells above the first
+        if first_row > 1
+            && [
+                BorderType::All,
+                BorderType::None,
+                BorderType::Outer,
+                BorderType::Top,
+            ]
+            .contains(&border_area.r#type)
+        {
+            let row = first_row - 1;
+            for column in first_column..=last_column {
+                let old_value = self.model.get_style_for_cell(sheet, row, column)?;
+                if is_max_border(Some(&border_area.item), old_value.border.bottom.as_ref()) {
+                    let mut style = old_value.clone();
+                    if border_area.r#type == BorderType::None {
+                        style.border.bottom = None;
+                    } else {
+                        style.border.bottom = Some(border_area.item.clone());
+                    }
+                    self.model.set_cell_style(sheet, row, column, &style)?;
+                    diff_list.push(Diff::SetCellStyle {
+                        sheet,
+                        row,
+                        column,
+                        old_value: Box::new(Some(old_value)),
+                        new_value: Box::new(style),
+                    });
+                }
+            }
+        }
+        // Cells to the right
+        if last_column < LAST_COLUMN
+            && [
+                BorderType::All,
+                BorderType::None,
+                BorderType::Outer,
+                BorderType::Right,
+            ]
+            .contains(&border_area.r#type)
+        {
+            let column = last_column + 1;
+            for row in first_row..=last_row {
+                let old_value = self.model.get_style_for_cell(sheet, row, column)?;
+                // If the border in the adjacent cell is "heavier" we change it
+                if is_max_border(Some(&border_area.item), old_value.border.left.as_ref()) {
+                    let mut style = old_value.clone();
+                    if border_area.r#type == BorderType::None {
+                        style.border.left = None;
+                    } else {
+                        style.border.left = Some(border_area.item.clone());
+                    }
+                    self.model.set_cell_style(sheet, row, column, &style)?;
+                    diff_list.push(Diff::SetCellStyle {
+                        sheet,
+                        row,
+                        column,
+                        old_value: Box::new(Some(old_value)),
+                        new_value: Box::new(style),
+                    });
+                }
+            }
+        }
+        // Cells bellow
+        if last_row < LAST_ROW
+            && [
+                BorderType::All,
+                BorderType::None,
+                BorderType::Outer,
+                BorderType::Bottom,
+            ]
+            .contains(&border_area.r#type)
+        {
+            let row = last_row + 1;
+            for column in first_column..=last_column {
+                let old_value = self.model.get_style_for_cell(sheet, row, column)?;
+                if is_max_border(Some(&border_area.item), old_value.border.top.as_ref()) {
+                    let mut style = old_value.clone();
+                    if border_area.r#type == BorderType::None {
+                        style.border.top = None;
+                    } else {
+                        style.border.top = Some(border_area.item.clone());
+                    }
+                    self.model.set_cell_style(sheet, row, column, &style)?;
+                    diff_list.push(Diff::SetCellStyle {
+                        sheet,
+                        row,
+                        column,
+                        old_value: Box::new(Some(old_value)),
+                        new_value: Box::new(style),
+                    });
+                }
+            }
+        }
+        // Cells to the left
+        if first_column > 1
+            && [
+                BorderType::All,
+                BorderType::None,
+                BorderType::Outer,
+                BorderType::Left,
+            ]
+            .contains(&border_area.r#type)
+        {
+            let column = first_column - 1;
+            for row in first_row..=last_row {
+                let old_value = self.model.get_style_for_cell(sheet, row, column)?;
+                if is_max_border(Some(&border_area.item), old_value.border.right.as_ref()) {
+                    let mut style = old_value.clone();
+                    if border_area.r#type == BorderType::None {
+                        style.border.right = None;
+                    } else {
+                        style.border.right = Some(border_area.item.clone());
+                    }
+                    self.model.set_cell_style(sheet, row, column, &style)?;
+                    diff_list.push(Diff::SetCellStyle {
+                        sheet,
+                        row,
+                        column,
+                        old_value: Box::new(Some(old_value)),
+                        new_value: Box::new(style),
+                    });
+                }
+            }
+        }
+
+        self.push_diff_list(diff_list);
+        Ok(())
+    }
+}

base/src/user_model/history.rs

@@ -2,7 +2,7 @@ use std::collections::HashMap;
 
 use bitcode::{Decode, Encode};
 
-use crate::types::{Cell, Col, Row, SheetState, Style};
+use crate::types::{Cell, Col, Row, SheetState, Style, Worksheet};
 
 #[derive(Clone, Encode, Decode)]
 pub(crate) struct RowData {
@@ -39,11 +39,17 @@ pub(crate) enum Diff {
         old_value: Box<Option<Cell>>,
         old_style: Box<Style>,
     },
+    CellClearFormatting {
+        sheet: u32,
+        row: i32,
+        column: i32,
+        old_style: Box<Option<Style>>,
+    },
     SetCellStyle {
         sheet: u32,
         row: i32,
         column: i32,
-        old_value: Box<Style>,
+        old_value: Box<Option<Style>>,
         new_value: Box<Style>,
     },
     // Column and Row diffs
@@ -59,6 +65,28 @@ pub(crate) enum Diff {
         new_value: f64,
         old_value: f64,
     },
+    SetColumnStyle {
+        sheet: u32,
+        column: i32,
+        old_value: Box<Option<Style>>,
+        new_value: Box<Style>,
+    },
+    SetRowStyle {
+        sheet: u32,
+        row: i32,
+        old_value: Box<Option<Style>>,
+        new_value: Box<Style>,
+    },
+    DeleteColumnStyle {
+        sheet: u32,
+        column: i32,
+        old_value: Box<Option<Style>>,
+    },
+    DeleteRowStyle {
+        sheet: u32,
+        row: i32,
+        old_value: Box<Option<Style>>,
+    },
     InsertRow {
         sheet: u32,
         row: i32,
@@ -77,6 +105,10 @@ pub(crate) enum Diff {
         column: i32,
         old_data: Box<ColumnData>,
     },
+    DeleteSheet {
+        sheet: u32,
+        old_data: Box<Worksheet>,
+    },
     SetFrozenRowsCount {
         sheet: u32,
         new_value: i32,
@@ -87,9 +119,6 @@ pub(crate) enum Diff {
         new_value: i32,
         old_value: i32,
     },
-    DeleteSheet {
-        sheet: u32,
-    },
     NewSheet {
         index: u32,
         name: String,
@@ -168,11 +197,6 @@ impl History {
             None => None,
         }
     }
-
-    pub fn clear(&mut self) {
-        self.redo_stack = vec![];
-        self.undo_stack = vec![];
-    }
 }
 
 #[derive(Clone, Encode, Decode)]

base/src/user_model/mod.rs

@@ -1,5 +1,6 @@
 #![deny(missing_docs)]
 
+mod border;
 mod border_utils;
 mod common;
 mod history;

base/src/workbook.rs

@@ -29,7 +29,7 @@ impl Workbook {
     }
 
     /// Returns the a list of defined names in the workbook with their scope
-    pub(crate) fn get_defined_names_with_scope(&self) -> Vec<(String, Option<u32>, String)> {
+    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

base/src/worksheet.rs

@@ -108,37 +108,120 @@ impl Worksheet {
         self.cols = vec![Col {
             min: 1,
             max: constants::LAST_COLUMN,
-            width: constants::DEFAULT_COLUMN_WIDTH / constants::COLUMN_WIDTH_FACTOR,
+            width: constants::DEFAULT_COLUMN_WIDTH,
-            custom_width: true,
+            custom_width: false,
             style: Some(style_index),
         }];
         Ok(())
     }
 
     pub fn set_column_style(&mut self, column: i32, style_index: i32) -> Result<(), String> {
-        let width = constants::DEFAULT_COLUMN_WIDTH / constants::COLUMN_WIDTH_FACTOR;
+        let width = self
+            .get_column_width(column)
+            .unwrap_or(constants::DEFAULT_COLUMN_WIDTH);
         self.set_column_width_and_style(column, width, Some(style_index))
     }
 
     pub fn set_row_style(&mut self, row: i32, style_index: i32) -> Result<(), String> {
+        // FIXME: This is a HACK
+        let custom_format = style_index != 0;
         for r in self.rows.iter_mut() {
             if r.r == row {
                 r.s = style_index;
-                r.custom_format = true;
+                r.custom_format = custom_format;
                 return Ok(());
             }
         }
         self.rows.push(Row {
             height: constants::DEFAULT_ROW_HEIGHT / constants::ROW_HEIGHT_FACTOR,
             r: row,
-            custom_format: true,
+            custom_format,
-            custom_height: true,
+            custom_height: false,
             s: style_index,
             hidden: false,
         });
         Ok(())
     }
 
+    pub fn delete_row_style(&mut self, row: i32) -> Result<(), String> {
+        let mut index = None;
+        for (i, r) in self.rows.iter().enumerate() {
+            if r.r == row {
+                index = Some(i);
+                break;
+            }
+        }
+        if let Some(i) = index {
+            if let Some(r) = self.rows.get_mut(i) {
+                r.s = 0;
+                r.custom_format = false;
+            }
+        }
+        Ok(())
+    }
+
+    pub fn delete_column_style(&mut self, column: i32) -> Result<(), String> {
+        if !is_valid_column_number(column) {
+            return Err(format!("Column number '{column}' is not valid."));
+        }
+        let cols = &mut self.cols;
+
+        let mut index = 0;
+        let mut split = false;
+        for c in cols.iter_mut() {
+            let min = c.min;
+            let max = c.max;
+            if min <= column && column <= max {
+                //
+                split = true;
+                break;
+            }
+            if column < min {
+                // We passed, there is nothing to delete
+                break;
+            }
+            index += 1;
+        }
+        if split {
+            let min = cols[index].min;
+            let max = cols[index].max;
+            let custom_width = cols[index].custom_width;
+            let width = cols[index].width;
+            let pre = Col {
+                min,
+                max: column - 1,
+                width,
+                custom_width,
+                style: cols[index].style,
+            };
+            let col = Col {
+                min: column,
+                max: column,
+                width,
+                custom_width,
+                style: None,
+            };
+            let post = Col {
+                min: column + 1,
+                max,
+                width,
+                custom_width,
+                style: cols[index].style,
+            };
+            cols.remove(index);
+            if column != max {
+                cols.insert(index, post);
+            }
+            if custom_width {
+                cols.insert(index, col);
+            }
+            if column != min {
+                cols.insert(index, pre);
+            }
+        }
+        Ok(())
+    }
+
     pub fn set_cell_style(
         &mut self,
         row: i32,
@@ -285,11 +368,12 @@ impl Worksheet {
 
     /// Changes the width of a column.
     ///   * If the column does not a have a width we simply add it
-    ///   * If it has, it might be part of a range and we ned to split the range.
+    ///   * If it has, it might be part of a range and we need to split the range.
     ///
     /// Fails if column index is outside allowed range or width is negative.
     pub fn set_column_width(&mut self, column: i32, width: f64) -> Result<(), String> {
-        self.set_column_width_and_style(column, width, None)
+        let style = self.get_column_style(column)?;
+        self.set_column_width_and_style(column, width, style)
     }
 
     pub(crate) fn set_column_width_and_style(
@@ -309,7 +393,7 @@ impl Worksheet {
             min: column,
             max: column,
             width: width / constants::COLUMN_WIDTH_FACTOR,
-            custom_width: true,
+            custom_width: width != constants::DEFAULT_COLUMN_WIDTH,
             style,
         };
         let mut index = 0;
@@ -319,7 +403,9 @@ impl Worksheet {
             let max = c.max;
             if min <= column && column <= max {
                 if min == column && max == column {
+                    c.style = style;
                     c.width = width / constants::COLUMN_WIDTH_FACTOR;
+                    c.custom_width = width != constants::DEFAULT_COLUMN_WIDTH;
                     return Ok(());
                 }
                 split = true;
@@ -383,6 +469,23 @@ impl Worksheet {
         Ok(constants::DEFAULT_COLUMN_WIDTH)
     }
 
+    /// Returns the column style index if present
+    pub fn get_column_style(&self, column: i32) -> Result<Option<i32>, String> {
+        if !is_valid_column_number(column) {
+            return Err(format!("Column number '{column}' is not valid."));
+        }
+
+        let cols = &self.cols;
+        for col in cols {
+            let min = col.min;
+            let max = col.max;
+            if column >= min && column <= max {
+                return Ok(col.style);
+            }
+        }
+        Ok(None)
+    }
+
     // Returns non empty cells in a column
     pub fn column_cell_references(&self, column: i32) -> Result<Vec<CellReferenceIndex>, String> {
         let mut column_cell_references: Vec<CellReferenceIndex> = Vec::new();

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"]

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

bindings/nodejs/.npmignore

@@ -0,0 +1,13 @@
+target
+Cargo.lock
+.cargo
+.github
+npm
+.eslintrc
+.prettierignore
+rustfmt.toml
+yarn.lock
+*.node
+.yarn
+__test__
+renovate.json

bindings/nodejs/.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

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"
+

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);
+```

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');
+});
+

bindings/nodejs/build.rs

@@ -0,0 +1,5 @@
+extern crate napi_build;
+
+fn main() {
+  napi_build::setup();
+}

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
+}

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

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();

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`

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"
+  }
+}

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`

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"
+  }
+}

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`

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"
+  }
+}

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`

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"
+  }
+}

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`

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"
+  }
+}

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`

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"
+  }
+}

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`

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"
+  }
+}

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`

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"
+  ]
+}

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`

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"
+  ]
+}

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`

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"
+  ]
+}

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`

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"
+  ]
+}

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`

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"
+  ]
+}

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`

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"
+  }
+}

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`

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"
+  }
+}

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"
+  }
+}

bindings/nodejs/rustfmt.toml

@@ -0,0 +1,2 @@
+tab_spaces = 2
+edition = "2021"

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;

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()))
+  }
+}

bindings/nodejs/src/user_model.rs

@@ -0,0 +1,654 @@
+#![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 = "rangeClearFormatting")]
+  pub fn range_clear_formatting(
+    &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_formatting(&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 = "setRowsHeight")]
+  pub fn set_rows_height(
+    &mut self,
+    sheet: u32,
+    row_start: i32,
+    row_end: i32,
+    height: f64,
+  ) -> Result<()> {
+    self
+      .model
+      .set_rows_height(sheet, row_start, row_end, height)
+      .map_err(to_js_error)
+  }
+
+  #[napi(js_name = "setColumnsWidth")]
+  pub fn set_columns_width(
+    &mut self,
+    sheet: u32,
+    column_start: i32,
+    column_end: i32,
+    width: f64,
+  ) -> Result<()> {
+    self
+      .model
+      .set_columns_width(sheet, column_start, column_end, 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()))
+  }
+}

bindings/python/Cargo.lock

@@ -1,884 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "adler"
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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" }
+xlsx = { package= "ironcalc", path = "../../xlsx", version = "0.3.0" }
-pyo3 = { version = "0.22.3", features = ["extension-module"] }
+pyo3 = { version = "0.23", features = ["extension-module"] }
 
 
 [features]

bindings/python/docs/api_reference.rst

@@ -0,0 +1,210 @@
+
+API Reference
+-------------
+
+In general methods in IronCalc use a 0-index base for the the sheet index and 1-index base for the row and column indexes.
+
+
+.. method:: evaluate()
+
+   Evaluates the model. This needs to be done after each change, otherwise the model might be on a broken state.
+
+.. method:: set_user_input(sheet: int, row: int, column: int, value: str)
+
+      Sets an input in a cell, as would be done by a user typing into a spreadsheet cell.
+
+      :param sheet: The sheet index (0-based).
+      :param row: The 1-based row index (first row is 1).
+      :param column: The 1-based column index (column “A” is 1).
+      :param value: The value to set, e.g. ``"123"`` or ``"=A1*2"``.
+
+.. method:: clear_cell_contents(sheet: int, row: int, column: int)
+
+      Removes the content of the cell but leaves the style intact.
+
+      :param sheet: The sheet index (0-based).
+      :param row: The 1-based row index (first row is 1).
+      :param column: The 1-based column index (column “A” is 1).
+
+.. method:: get_cell_content(sheet: int, row: int, column: int) -> str
+
+      Returns the raw content of a cell. If the cell contains a formula, 
+      the returned string starts with ``"="``.
+
+      :param sheet: The sheet index (0-based).
+      :param row: The 1-based row index.
+      :param column: The 1-based column index.
+      :returns: The raw content, or an empty string if the cell is empty.
+
+.. method:: get_cell_type(sheet: int, row: int, column: int) -> PyCellType
+
+      Returns the type of the cell (number, boolean, string, error, etc.).
+
+      :param sheet: The sheet index (0-based).
+      :param row: The 1-based row index.
+      :param column: The 1-based column index.
+      :rtype: PyCellType
+
+.. method:: get_formatted_cell_value(sheet: int, row: int, column: int) -> str
+
+      Returns the cell’s value as a formatted string, taking into 
+      account any number/currency/date formatting.
+
+      :param sheet: The sheet index (0-based).
+      :param row: The 1-based row index.
+      :param column: The 1-based column index.
+      :returns: Formatted string of the cell’s value.
+
+.. method:: set_cell_style(sheet: int, row: int, column: int, style: PyStyle)
+
+      Sets the style of the cell at (sheet, row, column).
+
+      :param sheet: The sheet index (0-based).
+      :param row: The 1-based row index.
+      :param column: The 1-based column index.
+      :param style: A PyStyle object specifying the style.
+
+.. method:: get_cell_style(sheet: int, row: int, column: int) -> PyStyle
+
+      Retrieves the style of the specified cell.
+
+      :param sheet: The sheet index (0-based).
+      :param row: The 1-based row index.
+      :param column: The 1-based column index.
+      :returns: A PyStyle object describing the cell’s style.
+
+.. method:: insert_rows(sheet: int, row: int, row_count: int)
+
+      Inserts new rows.
+
+      :param sheet: The sheet index (0-based).
+      :param row: The position before which new rows are inserted (1-based).
+      :param row_count: The number of rows to insert.
+
+.. method:: insert_columns(sheet: int, column: int, column_count: int)
+
+      Inserts new columns.
+
+      :param sheet: The sheet index (0-based).
+      :param column: The position before which new columns are inserted (1-based).
+      :param column_count: The number of columns to insert.
+
+.. method:: delete_rows(sheet: int, row: int, row_count: int)
+
+      Deletes a range of rows.
+
+      :param sheet: The sheet index (0-based).
+      :param row: The starting row to delete (1-based).
+      :param row_count: How many rows to delete.
+
+.. method:: delete_columns(sheet: int, column: int, column_count: int)
+
+      Deletes a range of columns.
+
+      :param sheet: The sheet index (0-based).
+      :param column: The starting column to delete (1-based).
+      :param column_count: How many columns to delete.
+
+.. method:: get_column_width(sheet: int, column: int) -> float
+
+      Retrieves the width of a given column.
+
+      :param sheet: The sheet index (0-based).
+      :param column: The 1-based column index.
+      :rtype: float
+
+.. method:: get_row_height(sheet: int, row: int) -> float
+
+      Retrieves the height of a given row.
+
+      :param sheet: The sheet index (0-based).
+      :param row: The 1-based row index.
+      :rtype: float
+
+.. method:: set_column_width(sheet: int, column: int, width: float)
+
+      Sets the width of a given column.
+
+      :param sheet: The sheet index (0-based).
+      :param column: The 1-based column index.
+      :param width: The desired width (float).
+
+.. method:: set_row_height(sheet: int, row: int, height: float)
+
+      Sets the height of a given row.
+
+      :param sheet: The sheet index (0-based).
+      :param row: The 1-based row index.
+      :param height: The desired height (float).
+
+.. method:: get_frozen_columns_count(sheet: int) -> int
+
+      Returns the number of columns frozen (pinned) on the left side of the sheet.
+
+      :param sheet: The sheet index (0-based).
+      :rtype: int
+
+.. method:: get_frozen_rows_count(sheet: int) -> int
+
+      Returns the number of rows frozen (pinned) at the top of the sheet.
+
+      :param sheet: The sheet index (0-based).
+      :rtype: int
+
+.. method:: set_frozen_columns_count(sheet: int, column_count: int)
+
+      Sets how many columns are frozen (pinned) on the left.
+
+      :param sheet: The sheet index (0-based).
+      :param column_count: The number of frozen columns (0-based).
+
+.. method:: set_frozen_rows_count(sheet: int, row_count: int)
+
+      Sets how many rows are frozen (pinned) at the top.
+
+      :param sheet: The sheet index (0-based).
+      :param row_count: The number of frozen rows (0-based).
+
+.. method:: get_worksheets_properties() -> List[PySheetProperty]
+
+      Returns a list of :class:`PySheetProperty` describing each worksheet’s 
+      name, visibility state, ID, and tab color.
+
+      :rtype: list of PySheetProperty
+
+.. method:: set_sheet_color(sheet: int, color: str)
+
+      Sets the tab color of a sheet. Use an empty string to clear the color.
+
+      :param sheet: The sheet index (0-based).
+      :param color: A color in “#RRGGBB” format, or empty to remove color.
+
+.. method:: add_sheet(sheet_name: str)
+
+      Creates a new sheet with the specified name.
+
+      :param sheet_name: The name to give the new sheet.
+
+.. method:: new_sheet()
+
+      Creates a new sheet with an auto-generated name.
+
+.. method:: delete_sheet(sheet: int)
+
+      Deletes the sheet at the given index.
+
+      :param sheet: The sheet index (0-based).
+
+.. method:: rename_sheet(sheet: int, new_name: str)
+
+      Renames the sheet at the given index.
+
+      :param sheet: The sheet index (0-based).
+      :param new_name: The new sheet name.
+
+.. method:: test_panic()
+
+      A test method that deliberately panics in Rust. 
+      Used for testing panic handling at the method level.
+
+      :raises WorkbookError: (wrapped Rust panic)

bindings/python/docs/index.rst

@@ -1,13 +1,20 @@
-IronCalc: The democratization of spreadsheets
+IronCalc
-=============================================
+========
 
 .. toctree::
    :maxdepth: 2
    :caption: Contents:
 
-IronCalc is a spreadsheet engine that allows you to create, modify and safe spreadsheets.
+   installation
+   usage_examples
+   top_level_methods
+   api_reference
+   objects
+
+IronCalc is a spreadsheet engine that allows you to create, modify and save spreadsheets.
 
 A simple example that creates a model, sets a formula, evaluates it and gets the result back:
 
 .. literalinclude:: examples/simple.py
-   :language: python
+   :language: python
+

bindings/python/docs/installation.rst

@@ -0,0 +1,9 @@
+Installation
+------------
+
+You can simply do:
+
+.. code-block:: bash
+
+   pip install ironcalc
+