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Roche","email":"guyon@live.com"},"license":"MIT","homepage":"https://github.com/protobi/exceljs#readme","keywords":["xlsx","json","csv","excel","font","border","fill","number","format","number format","alignment","office","spreadsheet","workbook","defined names","data validations","rich text","in-cell format","outlineLevel","views","frozen","split","pageSetup","pivot-tables","pivot-table","fork","temporary-fork"],"repository":{"type":"git","url":"git+https://github.com/protobi/exceljs.git"},"description":"Excel Workbook Manager - Temporary fork with pivot table enhancements and bug fixes pending upstream merge","maintainers":[{"name":"protobi","email":"info@protobi.com"}],"readme":"# ExcelJS (Protobi Fork)\n\n> ⚠️ **Temporary Fork** - This is a bridge fork with features pending upstream merge.\n> We recommend using [official exceljs](https://github.com/exceljs/exceljs) if you don't need these specific features.\n\n[](https://github.com/exceljs/exceljs/actions/workflows/tests.yml)\n[](https://www.npmjs.com/package/@protobi/exceljs)\n\nRead, manipulate and write spreadsheet data and styles to XLSX and JSON.\n\nReverse engineered from Excel spreadsheet files as a project.\n\n## Why Use This Fork?\n\nIf you need **today**:\n- Multiple pivot tables from same source data\n- Pivot table count metric (`metric: 'count'`)\n- **Pivot table and chart round-trip preservation** (read files with existing pivot tables/charts, write them back without corruption)\n- Critical bug fixes (XML parsing, date handling, streaming)\n\nAll features are submitted to upstream. [See merge status →](FORK.md)\n\n## Analysis of open pull requests\n\nBelow is a systematic review of open pull requests on the master repo.\nEach are classified by complexity, completeness, salience, and type, and prioritized.\nhttps://github.com/protobi/exceljs/wiki/Analysis-of-open-pull-requests-in-ExcelJS\n\n## Installation\n\n```bash\nnpm install @protobi/exceljs\n```\n\n## Migration Path\n\nOnce upstream merges our changes (tracking 6 PRs), switch back:\n\n```bash\nnpm install exceljs # Official package\n```\n\nNo code changes needed - we're API-compatible!\n\n## Fork Status\n\nSee [FORK.md](FORK.md) for detailed tracking of upstream PRs.\n\n## Security & Maintenance\n\n**Latest Version:** 4.4.0-protobi.9 (Feb 2026)\n\nThis fork receives active security maintenance:\n- Dependencies regularly updated\n- Security vulnerabilities addressed (60% reduction in latest release)\n- All core tests passing (unit, integration, end-to-end)\n\nSee [FORK.md Release History](FORK.md#fork-release-history) for details.\n\n## Fork Release Notes\n\n**4.4.0-protobi.10** (May 2026) - Streaming richText Bug Fix + Build Fix\n- **Fix richText shared-string deduplication in streaming writer** - Cherry-picked from PR #50 by @gwkline. Previously, every richText cell collapsed into a single shared-string entry because objects coerced to `\"[object Object]\"` as a hash key. Now richText values are hashed by their rendered XML representation. Addresses upstream [exceljs/exceljs#2267](https://github.com/exceljs/exceljs/issues/2267).\n- Adds regression tests covering richText deduplication and formatting-aware distinction\n- Pin uuid to ^9.0.1 to keep browserify build working (uuid@14 dropped the `main` field; uuid@11 ships ES2021 syntax browserify can't parse)\n- Adds `AGENTS.md` with hard rules for AI-generated PRs\n- All 886 unit tests passing\n\n**4.4.0-protobi.9** (February 2026) - Pivot Table & Chart Round-Trip Preservation + Critical Bug Fixes\n- **Round-trip preservation for pivot tables and charts** - Read Excel files with existing pivot tables and charts, write them back without corruption\n- Hybrid preservation approach: stores raw XML while extracting minimal metadata for structural integrity\n- Preserves pivot table cache definitions, cache records, and relationships\n- Preserves charts, chart styles, and chart colors\n- Preserves row heights (dyDescent attribute) accurately\n- Fixes Excel corruption warnings when round-tripping files with pivot tables/charts\n- **Fixes cell comment/note protection properties parsing** - Comment protection (locked/lockText) and margins now correctly round-trip (fixes upstream bug present in base ExcelJS)\n- All 1091 tests passing\n\n**4.4.0-protobi.8** (January 2026)\n- Form Control Checkbox support\n- Page fields for pivot tables\n- Archiver upgrade to 7.x (security fixes)\n\n**4.4.0-protobi.5** (December 2025)\n- Security & dependency updates\n- Reduced vulnerabilities by 60%\n\nSee [FORK.md](FORK.md#fork-release-history) for detailed changelog.\n\n## Commercial Support\n\nThis is our fork with features we need. Use at your own risk. \nWe maintain what we require and share the code publicly in case it's useful to others.\n\nThat said, we've put a fair bit of time to understanding ExcelJS.\nIf there are features or bug fixes that are important to your business, \nwe can offer professional support for consulting, and priority bug fixes. \nContact: [info@protobi.com](mailto:info@protobi.com)\n\n---\n\n# Translations\n\n* [中文文档](README_zh.md)\n\n# Installation\n\n```shell\nnpm install exceljs\n```\n\n# New Features!\n\n* **Multiple Pivot Tables Support** - The library now supports adding multiple pivot tables per workbook. Previously limited to one pivot table per file, you can now create as many pivot tables as needed across different worksheets. See [Pivot Tables](#pivot-tables) for details.\n* Merged [Add pivot table with limitations #2551](https://github.com/exceljs/exceljs/pull/2551).
Many thanks to Protobi and Michael for this contribution!\n* Merged [fix: styles rendering in case when \"numFmt\" is present in conditional formatting rules (resolves #1814) #1815](https://github.com/exceljs/exceljs/pull/1815).
Many thanks to [@andreykrupskii](https://github.com/andreykrupskii) for this contribution!\n* Merged [inlineStr cell type support #1575 #1576](https://github.com/exceljs/exceljs/pull/1576).
Many thanks to [@drdmitry](https://github.com/drdmitry) for this contribution!\n* Merged [Fix parsing of boolean attributes #1849](https://github.com/exceljs/exceljs/pull/1849).
Many thanks to [@bno1](https://github.com/bno1) for this contribution!\n* Merged [add optional custom auto-filter to table #1670](https://github.com/exceljs/exceljs/pull/1670).
Many thanks to [@thambley](https://github.com/thambley) for this contribution!\n* Merged [Deep copy inherited style #1850](https://github.com/exceljs/exceljs/pull/1850).
Many thanks to [@ikzhr](https://github.com/ikzhr) for this contribution!\n* Merged [Upgrade actions/cache and actions/setup-node #1846](https://github.com/exceljs/exceljs/pull/1846).
Many thanks to [@cclauss](https://github.com/cclauss) for this contribution!\n* Merged [Check object keys in isEqual #1831](https://github.com/exceljs/exceljs/pull/1831).
Many thanks to [@bno1](https://github.com/bno1) for this contribution!\n* Merged [Add v17 to testing workflow #1856](https://github.com/exceljs/exceljs/pull/1856).
Many thanks to [@Siemienik](https://github.com/Siemienik) for this contribution!\n* Merged [Upgrade jszip to its latest version to date. This version does not have any vulnerability found by Snyk so far #1895](https://github.com/exceljs/exceljs/pull/1895).
Many thanks to [@ValerioSevilla](https://github.com/ValerioSevilla) for this contribution!\n* Merged [Update README.md #1677](https://github.com/exceljs/exceljs/pull/1677).
Many thanks to [@xjrcode](https://github.com/xjrcode) for this contribution!\n* Merged [(docs): set prototype of RegExp correctly. #1700](https://github.com/exceljs/exceljs/pull/1700).
Many thanks to [@joeldenning](https://github.com/joeldenning) for this contribution!\n* Merged [Added timeouts to github actions #1733](https://github.com/exceljs/exceljs/pull/1733).
Many thanks to [@alexbjorlig](https://github.com/alexbjorlig) for this contribution!\n* Merged [fix issue 1676 #1701](https://github.com/exceljs/exceljs/pull/1701).
Many thanks to [@skypesky](https://github.com/skypesky) for this contribution!\n* Merged [ExcelJS/ExcelJS#2237 : Update CI Tests, Drop support for Node v8 #2242](https://github.com/exceljs/exceljs/pull/2242).
Many thanks to [@Siemienik](https://github.com/Siemienik) for this contribution!\n* Merged [Fix types for getWorksheet() #2223](https://github.com/exceljs/exceljs/pull/2223).
Many thanks to [@hfhchan-plb](https://github.com/hfhchan-plb) for this contribution!\n* Merged [add characters cannot be used for worksheet name #2126](https://github.com/exceljs/exceljs/pull/2126).
Many thanks to [@tkm-kj](https://github.com/tkm-kj) for this contribution!\n* Merged [Fix issue #1753 Reject promise when workbook reader is writing to temporary file stream and error occurs #1756](https://github.com/exceljs/exceljs/pull/1756).
Many thanks to [@pauliusg](https://github.com/pauliusg) for this contribution!\n* Merged [README.md to have correct link for Streaming XLSX #2186](https://github.com/exceljs/exceljs/pull/2186).
Many thanks to [@wulfsolter](https://github.com/wulfsolter) for this contribution!\n* Merged [Added a polyfill of promise.finally to support lower versions of Firefox. #1982](https://github.com/exceljs/exceljs/pull/1982).
Many thanks to [@DemoJj](https://github.com/DemoJj) for this contribution!\n* Merged [Fix read this.worksheet before assign it #1934](https://github.com/exceljs/exceljs/pull/1934).
Many thanks to [@ZyqGitHub1](https://github.com/ZyqGitHub1) for this contribution!\n* Merged [chore: upgrade jszip to ^3.10.1 #2211](https://github.com/exceljs/exceljs/pull/2211).
Many thanks to [@jarrod-cocoon](https://github.com/jarrod-cocoon) for this contribution!\n* Merged [fixed spelling error in README.md file #2208](https://github.com/exceljs/exceljs/pull/2208).
Many thanks to [@HugoP27](https://github.com/HugoP27) for this contribution!\n* Merged [fix: Fix xlsx.writeFile() not catching error when error occurs #2244](https://github.com/exceljs/exceljs/pull/2244).
Many thanks to [@zurmokeeper](https://github.com/zurmokeeper) for this contribution!\n* Merged [Improve worksheets' naming validation logic. #2257](https://github.com/exceljs/exceljs/pull/2257).
Many thanks to [@Siemienik](https://github.com/Siemienik) for this contribution!\n* Merged [fix issue 2125 - spliceRows remove last row #2140](https://github.com/exceljs/exceljs/pull/2140).
Many thanks to [@babu-ch](https://github.com/babu-ch) for this contribution!\n* Merged [fix: fix the loss of column attributes due to incorrect column order #2222](https://github.com/exceljs/exceljs/pull/2222).
Many thanks to [@cpaiyueyue](https://github.com/cpaiyueyue) for this contribution!\n* Merged [Fix: Sheet Properties Types #2327](https://github.com/exceljs/exceljs/pull/2327).
Many thanks to [@albeniraouf](https://github.com/albeniraouf) for this contribution!\n* Merged [Use node 18 LTS for tsc, and benchmark. Add node 20. to test matrix. … #2354](https://github.com/exceljs/exceljs/pull/2354).
Many thanks to [@Siemienik](https://github.com/Siemienik) for this contribution!\n* Merged [Add missing tooltip attribute to CellHyperlinkValue index.d.ts #2350](https://github.com/exceljs/exceljs/pull/2350).
Many thanks to [@NiklasPor](https://github.com/NiklasPor) for this contribution!\n* Merged [Increase resilience to generating large workbooks #2320](https://github.com/exceljs/exceljs/pull/2320).
Many thanks to [@hfhchan-plb](https://github.com/hfhchan-plb) for this contribution!\n* Merged [repair all 'c2fo.io' links ('c2fo.github.io') #2324](https://github.com/exceljs/exceljs/pull/2324).
Many thanks to [@justintunev7](https://github.com/justintunev7) for this contribution!\n* Merged [fix: fix type definitions about last column, formula values and protection #2309](https://github.com/exceljs/exceljs/pull/2309).
Many thanks to [@gltjk](https://github.com/gltjk) for this contribution!\n* Merged [fix: add spinCount field for WorksheetProtection type #2284](https://github.com/exceljs/exceljs/pull/2284).
Many thanks to [@damingerdai](https://github.com/damingerdai) for this contribution!\n* Merged [Add type definition for WorksheetModel.merges #2281](https://github.com/exceljs/exceljs/pull/2281).
Many thanks to [@ytjmt](https://github.com/ytjmt) for this contribution!\n\n# Contributions\n\nContributions are very welcome! It helps me know what features are desired or what bugs are causing the most pain.\n\n**Before opening a PR, read [CONTRIBUTING.md](CONTRIBUTING.md).**\n\n**If you are an AI agent (Claude Code, Cursor, Codex, Copilot Workspace, etc.) — or a human submitting AI-generated code — read [AGENTS.md](AGENTS.md) in full first.** It contains hard rules about scope, formatter sweeps, real-fixture testing, and Excel-verification for serialization changes. AI-generated PRs that ignore these get closed.\n\nFor humans: if you submit a pull request for a bugfix, please add a unit-test or integration-test (in the `spec/` folder) that catches the problem. Even a PR that just has a failing test is fine — I can analyse what the test is doing and fix the code from that.\n\nNote: Please try to avoid modifying the package version in a PR. Versions are updated on release and any change will most likely result in merge collisions.\n\nTo be clear, all contributions added to this library will be included in the library's MIT licence.\n\n### Let's chat together:\n\n[](https://discord.gg/siema)\n\n# Contents\n\n\n\n# Importing[⬆](#contents)\n\n```javascript\nconst ExcelJS = require('exceljs');\n```\n\n## ES5 Imports[⬆](#contents)\n\nTo use the ES5 transpiled code, for example for node.js versions older than 10, use the dist/es5 path.\n\n```javascript\nconst ExcelJS = require('exceljs/dist/es5');\n```\n\n**Note:** The ES5 build has an implicit dependency on a number of polyfills which are no longer\n explicitly added by exceljs.\n You will need to add \"core-js\" and \"regenerator-runtime\" to your dependencies and\n include the following requires in your code before the exceljs import:\n\n```javascript\n// polyfills required by exceljs\nrequire('core-js/modules/es.promise');\nrequire('core-js/modules/es.string.includes');\nrequire('core-js/modules/es.object.assign');\nrequire('core-js/modules/es.object.keys');\nrequire('core-js/modules/es.symbol');\nrequire('core-js/modules/es.symbol.async-iterator');\nrequire('regenerator-runtime/runtime');\n\nconst ExcelJS = require('exceljs/dist/es5');\n```\n\nFor IE 11, you'll also need a polyfill to support unicode regex patterns. For example,\n\n```js\nconst rewritePattern = require('regexpu-core');\nconst {generateRegexpuOptions} = require('@babel/helper-create-regexp-features-plugin/lib/util');\n\nconst {RegExp} = global;\ntry {\n new RegExp('a', 'u');\n} catch (err) {\n global.RegExp = function(pattern, flags) {\n if (flags && flags.includes('u')) {\n return new RegExp(rewritePattern(pattern, flags, generateRegexpuOptions({flags, pattern})));\n }\n return new RegExp(pattern, flags);\n };\n global.RegExp.prototype = RegExp.prototype;\n}\n```\n\n## Browserify[⬆](#contents)\n\nExcelJS publishes two browserified bundles inside the dist/ folder:\n\nOne with implicit dependencies on core-js polyfills...\n```html\n\n\n```\n\nAnd one without...\n```html\n\n\n```\n\n\n# Interface[⬆](#contents)\n\n## Create a Workbook[⬆](#contents)\n\n```javascript\nconst workbook = new ExcelJS.Workbook();\n```\n\n## Set Workbook Properties[⬆](#contents)\n\n```javascript\nworkbook.creator = 'Me';\nworkbook.lastModifiedBy = 'Her';\nworkbook.created = new Date(1985, 8, 30);\nworkbook.modified = new Date();\nworkbook.lastPrinted = new Date(2016, 9, 27);\n```\n\n```javascript\n// Set workbook dates to 1904 date system\nworkbook.properties.date1904 = true;\n```\n\n## Set Calculation Properties[⬆](#contents)\n\n```javascript\n// Force workbook calculation on load\nworkbook.calcProperties.fullCalcOnLoad = true;\n```\n\n## Workbook Views[⬆](#contents)\n\nThe Workbook views controls how many separate windows Excel will open when viewing the workbook.\n\n```javascript\nworkbook.views = [\n {\n x: 0, y: 0, width: 10000, height: 20000,\n firstSheet: 0, activeTab: 1, visibility: 'visible'\n }\n]\n```\n\n## Add a Worksheet[⬆](#contents)\n\n```javascript\nconst sheet = workbook.addWorksheet('My Sheet');\n```\n\nUse the second parameter of the addWorksheet function to specify options for the worksheet.\n\nFor Example:\n\n```javascript\n// create a sheet with a red tab colour using the hexadecimal alpha-red-green-blue format\nconst sheet = workbook.addWorksheet('My Sheet', {properties:{tabColor:{argb:'FFCC0000'}}});\n\n// create a sheet where the grid lines are hidden\nconst sheet = workbook.addWorksheet('My Sheet', {views: [{showGridLines: false}]});\n\n// create a sheet with the first row and column frozen\nconst sheet = workbook.addWorksheet('My Sheet', {views:[{state: 'frozen', xSplit: 1, ySplit:1}]});\n\n// Create worksheets with headers and footers\nconst sheet = workbook.addWorksheet('My Sheet', {\n headerFooter:{firstHeader: \"Hello Exceljs\", firstFooter: \"Hello World\"}\n});\n\n// create new sheet with pageSetup settings for A4 - landscape\nconst worksheet = workbook.addWorksheet('My Sheet', {\n pageSetup:{paperSize: 9, orientation:'landscape'}\n});\n```\n\n## Remove a Worksheet[⬆](#contents)\n\nUse the worksheet `id` to remove the sheet from workbook.\n\nFor Example:\n\n```javascript\n// Create a worksheet\nconst sheet = workbook.addWorksheet('My Sheet');\n\n// Remove the worksheet using worksheet id\nworkbook.removeWorksheet(sheet.id)\n```\n\n## Access Worksheets[⬆](#contents)\n```javascript\n// Iterate over all sheets\n// Note: workbook.worksheets.forEach will still work but this is better\nworkbook.eachSheet(function(worksheet, sheetId) {\n // ...\n});\n\n// fetch sheet by name\nconst worksheet = workbook.getWorksheet('My Sheet');\n\n// fetch sheet by id\n// INFO: Be careful when using it!\n// It tries to access to `worksheet.id` field. Sometimes (really very often) workbook has worksheets with id not starting from 1.\n// For instance It happens when any worksheet has been deleted.\n// It's much more safety when you assume that ids are random. And stop to use this function.\n// If you need to access all worksheets in a loop please look to the next example.\nconst worksheet = workbook.getWorksheet(1);\n\n// access by `worksheets` array:\nworkbook.worksheets[0]; //the first one;\n\n```\n\nIt's important to know that `workbook.getWorksheet(1) != Workbook.worksheets[0]` and `workbook.getWorksheet(1) != Workbook.worksheets[1]`,\nbecause `workbook.worksheets[0].id` may have any value.\n\n## Worksheet State[⬆](#contents)\n\n```javascript\n// make worksheet visible\nworksheet.state = 'visible';\n\n// make worksheet hidden\nworksheet.state = 'hidden';\n\n// make worksheet hidden from 'hide/unhide' dialog\nworksheet.state = 'veryHidden';\n```\n\n## Worksheet Properties[⬆](#contents)\n\nWorksheets support a property bucket to allow control over some features of the worksheet.\n\n```javascript\n// create new sheet with properties\nconst worksheet = workbook.addWorksheet('sheet', {properties:{tabColor:{argb:'FF00FF00'}}});\n\n// create a new sheet writer with properties\nconst worksheetWriter = workbookWriter.addWorksheet('sheet', {properties:{outlineLevelCol:1}});\n\n// adjust properties afterwards (not supported by worksheet-writer)\nworksheet.properties.outlineLevelCol = 2;\nworksheet.properties.defaultRowHeight = 15;\n```\n\n**Supported Properties**\n\n| Name | Default | Description |\n| ---------------- | ---------- | ----------- |\n| tabColor | undefined | Color of the tabs |\n| outlineLevelCol | 0 | The worksheet column outline level |\n| outlineLevelRow | 0 | The worksheet row outline level |\n| defaultRowHeight | 15 | Default row height |\n| defaultColWidth | (optional) | Default column width |\n| dyDescent | 55 | TBD |\n\n### Worksheet Metrics[⬆](#contents)\n\nSome new metrics have been added to Worksheet...\n\n| Name | Description |\n| ----------------- | ----------- |\n| rowCount | The total row size of the document. Equal to the row number of the last row that has values. |\n| actualRowCount | A count of the number of rows that have values. If a mid-document row is empty, it will not be included in the count. |\n| columnCount | The total column size of the document. Equal to the maximum cell count from all of the rows |\n| actualColumnCount | A count of the number of columns that have values. |\n\n\n## Page Setup[⬆](#contents)\n\nAll properties that can affect the printing of a sheet are held in a pageSetup object on the sheet.\n\n```javascript\n// create new sheet with pageSetup settings for A4 - landscape\nconst worksheet = workbook.addWorksheet('sheet', {\n pageSetup:{paperSize: 9, orientation:'landscape'}\n});\n\n// create a new sheet writer with pageSetup settings for fit-to-page\nconst worksheetWriter = workbookWriter.addWorksheet('sheet', {\n pageSetup:{fitToPage: true, fitToHeight: 5, fitToWidth: 7}\n});\n\n// adjust pageSetup settings afterwards\nworksheet.pageSetup.margins = {\n left: 0.7, right: 0.7,\n top: 0.75, bottom: 0.75,\n header: 0.3, footer: 0.3\n};\n\n// Set Print Area for a sheet\nworksheet.pageSetup.printArea = 'A1:G20';\n\n// Set multiple Print Areas by separating print areas with '&&'\nworksheet.pageSetup.printArea = 'A1:G10&&A11:G20';\n\n// Repeat specific rows on every printed page\nworksheet.pageSetup.printTitlesRow = '1:3';\n\n// Repeat specific columns on every printed page\nworksheet.pageSetup.printTitlesColumn = 'A:C';\n```\n\n**Supported pageSetup settings**\n\n| Name | Default | Description |\n| --------------------- | ------------- | ----------- |\n| margins | | Whitespace on the borders of the page. Units are inches. |\n| orientation | 'portrait' | Orientation of the page - i.e. taller (portrait) or wider (landscape) |\n| horizontalDpi | 4294967295 | Horizontal Dots per Inch. Default value is -1 |\n| verticalDpi | 4294967295 | Vertical Dots per Inch. Default value is -1 |\n| fitToPage | | Whether to use fitToWidth and fitToHeight or scale settings. Default is based on presence of these settings in the pageSetup object - if both are present, scale wins (i.e. default will be false) |\n| pageOrder | 'downThenOver'| Which order to print the pages - one of ['downThenOver', 'overThenDown'] |\n| blackAndWhite | false | Print without colour |\n| draft | false | Print with less quality (and ink) |\n| cellComments | 'None' | Where to place comments - one of ['atEnd', 'asDisplayed', 'None'] |\n| errors | 'displayed' | Where to show errors - one of ['dash', 'blank', 'NA', 'displayed'] |\n| scale | 100 | Percentage value to increase or reduce the size of the print. Active when fitToPage is false |\n| fitToWidth | 1 | How many pages wide the sheet should print on to. Active when fitToPage is true |\n| fitToHeight | 1 | How many pages high the sheet should print on to. Active when fitToPage is true |\n| paperSize | | What paper size to use (see below) |\n| showRowColHeaders | false | Whether to show the row numbers and column letters |\n| showGridLines | false | Whether to show grid lines |\n| firstPageNumber | | Which number to use for the first page |\n| horizontalCentered | false | Whether to center the sheet data horizontally |\n| verticalCentered | false | Whether to center the sheet data vertically |\n\n**Example Paper Sizes**\n\n| Name | Value |\n| ----------------------------- | --------- |\n| Letter | undefined |\n| Legal | 5 |\n| Executive | 7 |\n| A3 | 8 |\n| A4 | 9 |\n| A5 | 11 |\n| B5 (JIS) | 13 |\n| Envelope #10 | 20 |\n| Envelope DL | 27 |\n| Envelope C5 | 28 |\n| Envelope B5 | 34 |\n| Envelope Monarch | 37 |\n| Double Japan Postcard Rotated | 82 |\n| 16K 197x273 mm | 119 |\n\n## Headers and Footers[⬆](#contents)\n\nHere's how to add headers and footers.\nThe added content is mainly text, such as time, introduction, file information, etc., and you can set the style of the text.\nIn addition, you can set different texts for the first page and even page.\n\nNote: Images are not currently supported.\n\n```javascript\n\n// Create worksheets with headers and footers\nvar sheet = workbook.addWorksheet('sheet', {\n headerFooter:{firstHeader: \"Hello Exceljs\", firstFooter: \"Hello World\"}\n});\n// Create worksheets with headers and footers\nvar worksheetWriter = workbookWriter.addWorksheet('sheet', {\n headerFooter:{firstHeader: \"Hello Exceljs\", firstFooter: \"Hello World\"}\n});\n// Set footer (default centered), result: \"Page 2 of 16\"\nworksheet.headerFooter.oddFooter = \"Page &P of &N\";\n\n// Set the footer (default centered) to bold, resulting in: \"Page 2 of 16\"\nworksheet.headerFooter.oddFooter = \"Page &P of &N\";\n\n// Set the left footer to 18px and italicize. Result: \"Page 2 of 16\"\nworksheet.headerFooter.oddFooter = \"&LPage &P of &N\";\n\n// Set the middle header to gray Aril, the result: \"52 exceljs\"\nworksheet.headerFooter.oddHeader = \"&C&KCCCCCC&\\\"Aril\\\"52 exceljs\";\n\n// Set the left, center, and right text of the footer. Result: “Exceljs” in the footer left. “demo.xlsx” in the footer center. “Page 2” in the footer right\nworksheet.headerFooter.oddFooter = \"&Lexceljs&C&F&RPage &P\";\n\n// Add different header & footer for the first page\nworksheet.headerFooter.differentFirst = true;\nworksheet.headerFooter.firstHeader = \"Hello Exceljs\";\nworksheet.headerFooter.firstFooter = \"Hello World\"\n```\n\n**Supported headerFooter settings**\n\n| Name | Default | Description |\n| ----------------- | --------- | ----------- |\n| differentFirst | false | Set the value of differentFirst as true, which indicates that headers/footers for first page are different from the other pages |\n| differentOddEven | false | Set the value of differentOddEven as true, which indicates that headers/footers for odd and even pages are different |\n| oddHeader | null | Set header string for odd(default) pages, could format the string |\n| oddFooter | null | Set footer string for odd(default) pages, could format the string |\n| evenHeader | null | Set header string for even pages, could format the string |\n| evenFooter | null | Set footer string for even pages, could format the string |\n| firstHeader | null | Set header string for the first page, could format the string |\n| firstFooter | null | Set footer string for the first page, could format the string |\n\n**Script Commands**\n\n| Commands | Description |\n| ------------ | ----------- |\n| &L | Set position to the left |\n| &C | Set position to the center |\n| &R | Set position to the right |\n| &P | The current page number |\n| &N | The total number of pages |\n| &D | The current date |\n| &T | The current time |\n| &G | A picture |\n| &A | The worksheet name |\n| &F | The file name |\n| &B | Make text bold |\n| &I | Italicize text |\n| &U | Underline text |\n| &\"font name\" | font name, for example &\"Aril\" |\n| &font size | font size, for example 12 |\n| &KHEXCode | font color, for example &KCCCCCC |\n\n## Worksheet Views[⬆](#contents)\n\nWorksheets now support a list of views, that control how Excel presents the sheet:\n\n* frozen - where a number of rows and columns to the top and left are frozen in place. Only the bottom right section will scroll\n* split - where the view is split into 4 sections, each semi-independently scrollable.\n\nEach view also supports various properties:\n\n| Name | Default | Description |\n| ----------------- | --------- | ----------- |\n| state | 'normal' | Controls the view state - one of normal, frozen or split |\n| rightToLeft | false | Sets the worksheet view's orientation to right-to-left |\n| activeCell | undefined | The currently selected cell |\n| showRuler | true | Shows or hides the ruler in Page Layout |\n| showRowColHeaders | true | Shows or hides the row and column headers (e.g. A1, B1 at the top and 1,2,3 on the left |\n| showGridLines | true | Shows or hides the gridlines (shown for cells where borders have not been defined) |\n| zoomScale | 100 | Percentage zoom to use for the view |\n| zoomScaleNormal | 100 | Normal zoom for the view |\n| style | undefined | Presentation style - one of pageBreakPreview or pageLayout. Note pageLayout is not compatible with frozen views |\n\n### Frozen Views[⬆](#contents)\n\nFrozen views support the following extra properties:\n\n| Name | Default | Description |\n| ----------------- | --------- | ----------- |\n| xSplit | 0 | How many columns to freeze. To freeze rows only, set this to 0 or undefined |\n| ySplit | 0 | How many rows to freeze. To freeze columns only, set this to 0 or undefined |\n| topLeftCell | special | Which cell will be top-left in the bottom-right pane. Note: cannot be a frozen cell. Defaults to first unfrozen cell |\n\n```javascript\nworksheet.views = [\n {state: 'frozen', xSplit: 2, ySplit: 3, topLeftCell: 'G10', activeCell: 'A1'}\n];\n```\n\n### Split Views[⬆](#contents)\n\nSplit views support the following extra properties:\n\n| Name | Default | Description |\n| ----------------- | --------- | ----------- |\n| xSplit | 0 | How many points from the left to place the splitter. To split vertically, set this to 0 or undefined |\n| ySplit | 0 | How many points from the top to place the splitter. To split horizontally, set this to 0 or undefined |\n| topLeftCell | undefined | Which cell will be top-left in the bottom-right pane. |\n| activePane | undefined | Which pane will be active - one of topLeft, topRight, bottomLeft and bottomRight |\n\n```javascript\nworksheet.views = [\n {state: 'split', xSplit: 2000, ySplit: 3000, topLeftCell: 'G10', activeCell: 'A1'}\n];\n```\n\n## Auto filters[⬆](#contents)\n\nIt is possible to apply an auto filter to your worksheet.\n\n```javascript\nworksheet.autoFilter = 'A1:C1';\n```\n\nWhile the range string is the standard form of the autoFilter, the worksheet will also support the\nfollowing values:\n\n```javascript\n// Set an auto filter from A1 to C1\nworksheet.autoFilter = {\n from: 'A1',\n to: 'C1',\n}\n\n// Set an auto filter from the cell in row 3 and column 1\n// to the cell in row 5 and column 12\nworksheet.autoFilter = {\n from: {\n row: 3,\n column: 1\n },\n to: {\n row: 5,\n column: 12\n }\n}\n\n// Set an auto filter from D3 to the\n// cell in row 7 and column 5\nworksheet.autoFilter = {\n from: 'D3',\n to: {\n row: 7,\n column: 5\n }\n}\n```\n\n## Columns[⬆](#contents)\n\n```javascript\n// Add column headers and define column keys and widths\n// Note: these column structures are a workbook-building convenience only,\n// apart from the column width, they will not be fully persisted.\nworksheet.columns = [\n { header: 'Id', key: 'id', width: 10 },\n { header: 'Name', key: 'name', width: 32 },\n { header: 'D.O.B.', key: 'DOB', width: 10, outlineLevel: 1 }\n];\n\n// Access an individual columns by key, letter and 1-based column number\nconst idCol = worksheet.getColumn('id');\nconst nameCol = worksheet.getColumn('B');\nconst dobCol = worksheet.getColumn(3);\n\n// set column properties\n\n// Note: will overwrite cell value C1\ndobCol.header = 'Date of Birth';\n\n// Note: this will overwrite cell values C1:C2\ndobCol.header = ['Date of Birth', 'A.K.A. D.O.B.'];\n\n// from this point on, this column will be indexed by 'dob' and not 'DOB'\ndobCol.key = 'dob';\n\ndobCol.width = 15;\n\n// Hide the column if you'd like\ndobCol.hidden = true;\n\n// set an outline level for columns\nworksheet.getColumn(4).outlineLevel = 0;\nworksheet.getColumn(5).outlineLevel = 1;\n\n// columns support a readonly field to indicate the collapsed state based on outlineLevel\nexpect(worksheet.getColumn(4).collapsed).to.equal(false);\nexpect(worksheet.getColumn(5).collapsed).to.equal(true);\n\n// iterate over all current cells in this column\ndobCol.eachCell(function(cell, rowNumber) {\n // ...\n});\n\n// iterate over all current cells in this column including empty cells\ndobCol.eachCell({ includeEmpty: true }, function(cell, rowNumber) {\n // ...\n});\n\n// add a column of new values\nworksheet.getColumn(6).values = [1,2,3,4,5];\n\n// add a sparse column of values\nworksheet.getColumn(7).values = [,,2,3,,5,,7,,,,11];\n\n// cut one or more columns (columns to the right are shifted left)\n// If column properties have been defined, they will be cut or moved accordingly\n// Known Issue: If a splice causes any merged cells to move, the results may be unpredictable\nworksheet.spliceColumns(3,2);\n\n// remove one column and insert two more.\n// Note: columns 4 and above will be shifted right by 1 column.\n// Also: If the worksheet has more rows than values in the column inserts,\n// the rows will still be shifted as if the values existed\nconst newCol3Values = [1,2,3,4,5];\nconst newCol4Values = ['one', 'two', 'three', 'four', 'five'];\nworksheet.spliceColumns(3, 1, newCol3Values, newCol4Values);\n\n```\n\n## Rows[⬆](#contents)\n\n```javascript\n// Get a row object. If it doesn't already exist, a new empty one will be returned\nconst row = worksheet.getRow(5);\n\n// Get multiple row objects. If it doesn't already exist, new empty ones will be returned\nconst rows = worksheet.getRows(5, 2); // start, length (>0, else undefined is returned)\n\n// Get the last editable row in a worksheet (or undefined if there are none)\nconst row = worksheet.lastRow;\n\n// Set a specific row height\nrow.height = 42.5;\n\n// make row hidden\nrow.hidden = true;\n\n// set an outline level for rows\nworksheet.getRow(4).outlineLevel = 0;\nworksheet.getRow(5).outlineLevel = 1;\n\n// rows support a readonly field to indicate the collapsed state based on outlineLevel\nexpect(worksheet.getRow(4).collapsed).to.equal(false);\nexpect(worksheet.getRow(5).collapsed).to.equal(true);\n\n\nrow.getCell(1).value = 5; // A5's value set to 5\nrow.getCell('name').value = 'Zeb'; // B5's value set to 'Zeb' - assuming column 2 is still keyed by name\nrow.getCell('C').value = new Date(); // C5's value set to now\n\n// Get a row as a sparse array\n// Note: interface change: worksheet.getRow(4) ==> worksheet.getRow(4).values\nrow = worksheet.getRow(4).values;\nexpect(row[5]).toEqual('Kyle');\n\n// assign row values by contiguous array (where array element 0 has a value)\nrow.values = [1,2,3];\nexpect(row.getCell(1).value).toEqual(1);\nexpect(row.getCell(2).value).toEqual(2);\nexpect(row.getCell(3).value).toEqual(3);\n\n// assign row values by sparse array (where array element 0 is undefined)\nconst values = []\nvalues[5] = 7;\nvalues[10] = 'Hello, World!';\nrow.values = values;\nexpect(row.getCell(1).value).toBeNull();\nexpect(row.getCell(5).value).toEqual(7);\nexpect(row.getCell(10).value).toEqual('Hello, World!');\n\n// assign row values by object, using column keys\nrow.values = {\n id: 13,\n name: 'Thing 1',\n dob: new Date()\n};\n\n// Insert a page break below the row\nrow.addPageBreak();\n\n// Iterate over all rows that have values in a worksheet\nworksheet.eachRow(function(row, rowNumber) {\n console.log('Row ' + rowNumber + ' = ' + JSON.stringify(row.values));\n});\n\n// Iterate over all rows (including empty rows) in a worksheet\nworksheet.eachRow({ includeEmpty: true }, function(row, rowNumber) {\n console.log('Row ' + rowNumber + ' = ' + JSON.stringify(row.values));\n});\n\n// Iterate over all non-null cells in a row\nrow.eachCell(function(cell, colNumber) {\n console.log('Cell ' + colNumber + ' = ' + cell.value);\n});\n\n// Iterate over all cells in a row (including empty cells)\nrow.eachCell({ includeEmpty: true }, function(cell, colNumber) {\n console.log('Cell ' + colNumber + ' = ' + cell.value);\n});\n\n// Commit a completed row to stream\nrow.commit();\n\n// row metrics\nconst rowSize = row.cellCount;\nconst numValues = row.actualCellCount;\n```\n\n## Add Rows[⬆](#contents)\n\n```javascript\n// Add a couple of Rows by key-value, after the last current row, using the column keys\nworksheet.addRow({id: 1, name: 'John Doe', dob: new Date(1970,1,1)});\nworksheet.addRow({id: 2, name: 'Jane Doe', dob: new Date(1965,1,7)});\n\n// Add a row by contiguous Array (assign to columns A, B & C)\nworksheet.addRow([3, 'Sam', new Date()]);\n\n// Add a row by sparse Array (assign to columns A, E & I)\nconst rowValues = [];\nrowValues[1] = 4;\nrowValues[5] = 'Kyle';\nrowValues[9] = new Date();\nworksheet.addRow(rowValues);\n\n// Add a row with inherited style\n// This new row will have same style as last row\n// And return as row object\nconst newRow = worksheet.addRow(rowValues, 'i');\n\n// Add an array of rows\nconst rows = [\n [5,'Bob',new Date()], // row by array\n {id:6, name: 'Barbara', dob: new Date()}\n];\n// add new rows and return them as array of row objects\nconst newRows = worksheet.addRows(rows);\n\n// Add an array of rows with inherited style\n// These new rows will have same styles as last row\n// and return them as array of row objects\nconst newRowsStyled = worksheet.addRows(rows, 'i');\n```\n| Parameter | Description | Default Value |\n| -------------- | ----------------- | -------- |\n| value/s | The new row/s values | |\n| style | 'i' for inherit from row above, 'i+' to include empty cells, 'n' for none | *'n'* |\n\n## Handling Individual Cells[⬆](#contents)\n\n```javascript\nconst cell = worksheet.getCell('C3');\n\n// Modify/Add individual cell\ncell.value = new Date(1968, 5, 1);\n\n// query a cell's type\nexpect(cell.type).toEqual(Excel.ValueType.Date);\n\n// use string value of cell\nmyInput.value = cell.text;\n\n// use html-safe string for rendering...\nconst html = '' + cell.html + '
';\n\n```\n\n## Merged Cells[⬆](#contents)\n\n```javascript\n// merge a range of cells\nworksheet.mergeCells('A4:B5');\n\n// ... merged cells are linked\nworksheet.getCell('B5').value = 'Hello, World!';\nexpect(worksheet.getCell('B5').value).toBe(worksheet.getCell('A4').value);\nexpect(worksheet.getCell('B5').master).toBe(worksheet.getCell('A4'));\n\n// ... merged cells share the same style object\nexpect(worksheet.getCell('B5').style).toBe(worksheet.getCell('A4').style);\nworksheet.getCell('B5').style.font = myFonts.arial;\nexpect(worksheet.getCell('A4').style.font).toBe(myFonts.arial);\n\n// unmerging the cells breaks the style links\nworksheet.unMergeCells('A4');\nexpect(worksheet.getCell('B5').style).not.toBe(worksheet.getCell('A4').style);\nexpect(worksheet.getCell('B5').style.font).not.toBe(myFonts.arial);\n\n// merge by top-left, bottom-right\nworksheet.mergeCells('K10', 'M12');\n\n// merge by start row, start column, end row, end column (equivalent to K10:M12)\nworksheet.mergeCells(10,11,12,13);\n```\n\n## Insert Rows[⬆](#contents)\n\n```javascript\ninsertRow(pos, value, style = 'n')\ninsertRows(pos, values, style = 'n')\n\n// Insert a couple of Rows by key-value, shifting down rows every time\nworksheet.insertRow(1, {id: 1, name: 'John Doe', dob: new Date(1970,1,1)});\nworksheet.insertRow(1, {id: 2, name: 'Jane Doe', dob: new Date(1965,1,7)});\n\n// Insert a row by contiguous Array (assign to columns A, B & C)\nworksheet.insertRow(1, [3, 'Sam', new Date()]);\n\n// Insert a row by sparse Array (assign to columns A, E & I)\nvar rowValues = [];\nrowValues[1] = 4;\nrowValues[5] = 'Kyle';\nrowValues[9] = new Date();\n// insert new row and return as row object\nconst insertedRow = worksheet.insertRow(1, rowValues);\n\n// Insert a row, with inherited style\n// This new row will have same style as row on top of it\n// And return as row object\nconst insertedRowInherited = worksheet.insertRow(1, rowValues, 'i');\n\n// Insert a row, keeping original style\n// This new row will have same style as it was previously\n// And return as row object\nconst insertedRowOriginal = worksheet.insertRow(1, rowValues, 'o');\n\n// Insert an array of rows, in position 1, shifting down current position 1 and later rows by 2 rows\nvar rows = [\n [5,'Bob',new Date()], // row by array\n {id:6, name: 'Barbara', dob: new Date()}\n];\n// insert new rows and return them as array of row objects\nconst insertedRows = worksheet.insertRows(1, rows);\n\n// Insert an array of rows, with inherited style\n// These new rows will have same style as row on top of it\n// And return them as array of row objects\nconst insertedRowsInherited = worksheet.insertRows(1, rows, 'i');\n\n// Insert an array of rows, keeping original style\n// These new rows will have same style as it was previously in 'pos' position\nconst insertedRowsOriginal = worksheet.insertRows(1, rows, 'o');\n\n```\n| Parameter | Description | Default Value |\n| -------------- | ----------------- | -------- |\n| pos | Row number where you want to insert, pushing down all rows from there | |\n| value/s | The new row/s values | |\n| style | 'i' for inherit from row above, , 'i+' to include empty cells, 'o' for original style, 'o+' to include empty cells, 'n' for none | *'n'* |\n\n## Splice[⬆](#contents)\n\n```javascript\n// Cut one or more rows (rows below are shifted up)\n// Known Issue: If a splice causes any merged cells to move, the results may be unpredictable\nworksheet.spliceRows(4, 3);\n\n// remove one row and insert two more.\n// Note: rows 4 and below will be shifted down by 1 row.\nconst newRow3Values = [1, 2, 3, 4, 5];\nconst newRow4Values = ['one', 'two', 'three', 'four', 'five'];\nworksheet.spliceRows(3, 1, newRow3Values, newRow4Values);\n\n// Cut one or more cells (cells to the right are shifted left)\n// Note: this operation will not affect other rows\nrow.splice(3, 2);\n\n// remove one cell and insert two more (cells to the right of the cut cell will be shifted right)\nrow.splice(4, 1, 'new value 1', 'new value 2');\n```\n| Parameter | Description | Default Value |\n| -------------- | ----------------- | -------- |\n| start | Starting point to splice from | |\n| count | Number of rows/cells to remove | |\n| ...inserts | New row/cell values to insert | |\n\n## Duplicate a Row[⬆](#contents)\n\n```javascript\nduplicateRow(start, amount = 1, insert = true)\n\nconst wb = new ExcelJS.Workbook();\nconst ws = wb.addWorksheet('duplicateTest');\nws.getCell('A1').value = 'One';\nws.getCell('A2').value = 'Two';\nws.getCell('A3').value = 'Three';\nws.getCell('A4').value = 'Four';\n\n// This line will duplicate the row 'One' twice but it will replace rows 'Two' and 'Three'\n// if third param was true so it would insert 2 new rows with the values and styles of row 'One'\nws.duplicateRow(1,2,false);\n```\n\n| Parameter | Description | Default Value |\n| -------------- | ----------------- | -------- |\n| start | Row number you want to duplicate (first in excel is 1) | |\n| amount | The times you want to duplicate the row | 1 |\n| insert | *true* if you want to insert new rows for the duplicates, or *false* if you want to replace them | *true* |\n\n\n\n## Defined Names[⬆](#contents)\n\nIndividual cells (or multiple groups of cells) can have names assigned to them.\n The names can be used in formulas and data validation (and probably more).\n\n```javascript\n// assign (or get) a name for a cell (will overwrite any other names that cell had)\nworksheet.getCell('A1').name = 'PI';\nexpect(worksheet.getCell('A1').name).to.equal('PI');\n\n// assign (or get) an array of names for a cell (cells can have more than one name)\nworksheet.getCell('A1').names = ['thing1', 'thing2'];\nexpect(worksheet.getCell('A1').names).to.have.members(['thing1', 'thing2']);\n\n// remove a name from a cell\nworksheet.getCell('A1').removeName('thing1');\nexpect(worksheet.getCell('A1').names).to.have.members(['thing2']);\n```\n\n## Data Validations[⬆](#contents)\n\nCells can define what values are valid or not and provide prompting to the user to help guide them.\n\nValidation types can be one of the following:\n\n| Type | Description |\n| ---------- | ----------- |\n| list | Define a discrete set of valid values. Excel will offer these in a dropdown for easy entry |\n| whole | The value must be a whole number |\n| decimal | The value must be a decimal number |\n| textLength | The value may be text but the length is controlled |\n| custom | A custom formula controls the valid values |\n\nFor types other than list or custom, the following operators affect the validation:\n\n| Operator | Description |\n| -------------------- | ----------- |\n| between | Values must lie between formula results |\n| notBetween | Values must not lie between formula results |\n| equal | Value must equal formula result |\n| notEqual | Value must not equal formula result |\n| greaterThan | Value must be greater than formula result |\n| lessThan | Value must be less than formula result |\n| greaterThanOrEqual | Value must be greater than or equal to formula result |\n| lessThanOrEqual | Value must be less than or equal to formula result |\n\n```javascript\n// Specify list of valid values (One, Two, Three, Four).\n// Excel will provide a dropdown with these values.\nworksheet.getCell('A1').dataValidation = {\n type: 'list',\n allowBlank: true,\n formulae: ['\"One,Two,Three,Four\"']\n};\n\n// Specify list of valid values from a range.\n// Excel will provide a dropdown with these values.\nworksheet.getCell('A1').dataValidation = {\n type: 'list',\n allowBlank: true,\n formulae: ['$D$5:$F$5']\n};\n\n// Specify Cell must be a whole number that is not 5.\n// Show the user an appropriate error message if they get it wrong\nworksheet.getCell('A1').dataValidation = {\n type: 'whole',\n operator: 'notEqual',\n showErrorMessage: true,\n formulae: [5],\n errorStyle: 'error',\n errorTitle: 'Five',\n error: 'The value must not be Five'\n};\n\n// Specify Cell must be a decimal number between 1.5 and 7.\n// Add 'tooltip' to help guid the user\nworksheet.getCell('A1').dataValidation = {\n type: 'decimal',\n operator: 'between',\n allowBlank: true,\n showInputMessage: true,\n formulae: [1.5, 7],\n promptTitle: 'Decimal',\n prompt: 'The value must between 1.5 and 7'\n};\n\n// Specify Cell must be have a text length less than 15\nworksheet.getCell('A1').dataValidation = {\n type: 'textLength',\n operator: 'lessThan',\n showErrorMessage: true,\n allowBlank: true,\n formulae: [15]\n};\n\n// Specify Cell must be have be a date before 1st Jan 2016\nworksheet.getCell('A1').dataValidation = {\n type: 'date',\n operator: 'lessThan',\n showErrorMessage: true,\n allowBlank: true,\n formulae: [new Date(2016,0,1)]\n};\n```\n\n## Cell Comments[⬆](#contents)\n\nAdd old style comment to a cell\n\n```javascript\n// plain text note\nworksheet.getCell('A1').note = 'Hello, ExcelJS!';\n\n// colourful formatted note\nws.getCell('B1').note = {\n texts: [\n {'font': {'size': 12, 'color': {'theme': 0}, 'name': 'Calibri', 'family': 2, 'scheme': 'minor'}, 'text': 'This is '},\n {'font': {'italic': true, 'size': 12, 'color': {'theme': 0}, 'name': 'Calibri', 'scheme': 'minor'}, 'text': 'a'},\n {'font': {'size': 12, 'color': {'theme': 1}, 'name': 'Calibri', 'family': 2, 'scheme': 'minor'}, 'text': ' '},\n {'font': {'size': 12, 'color': {'argb': 'FFFF6600'}, 'name': 'Calibri', 'scheme': 'minor'}, 'text': 'colorful'},\n {'font': {'size': 12, 'color': {'theme': 1}, 'name': 'Calibri', 'family': 2, 'scheme': 'minor'}, 'text': ' text '},\n {'font': {'size': 12, 'color': {'argb': 'FFCCFFCC'}, 'name': 'Calibri', 'scheme': 'minor'}, 'text': 'with'},\n {'font': {'size': 12, 'color': {'theme': 1}, 'name': 'Calibri', 'family': 2, 'scheme': 'minor'}, 'text': ' in-cell '},\n {'font': {'bold': true, 'size': 12, 'color': {'theme': 1}, 'name': 'Calibri', 'family': 2, 'scheme': 'minor'}, 'text': 'format'},\n ],\n margins: {\n insetmode: 'custom',\n inset: [0.25, 0.25, 0.35, 0.35]\n },\n size: {\n rows: 10,\n cols: 4\n },\n protection: {\n locked: True,\n lockText: False\n },\n editAs: 'twoCells',\n};\n```\n\n### Cell Comments Properties[⬆](#contents)\n\nThe following table defines the properties supported by cell comments.\n\n| Field | Required | Default Value | Description |\n| -------- | -------- |---------------------|---------------------------------------------------------------------------------------------------------|\n| texts | Y | | The text of the comment |\n| margins | N | {} | Determines the value of margins for automatic or custom cell comments \n| protection | N | {} | Specifying the lock status of objects and object text using protection attributes |\n| editAs | N | 'absolute' | Use the 'editAs' attribute to specify how the annotation is anchored to the cell |\n| size | N | {rows: 4, col*: 2} | Set size of note box in rows / columns. Rows defaults to length of `texts` if an array or 4 if a string |\n### Cell Comments Margins\n\nDetermine the page margin setting mode of the cell annotation, automatic or custom mode.\n\n```javascript\nws.getCell('B1').note.margins = {\n insetmode: 'custom',\n inset: [0.25, 0.25, 0.35, 0.35]\n}\n```\n\n### Supported Margins Properties[⬆](#contents)\n\n| Property | Required | Default Value | Description |\n| -------- | -------- | ------------- | ----------- |\n| insetmode | N | 'auto' | Determines whether comment margins are set automatically and the value is 'auto' or 'custom' |\n| inset | N | [0.13, 0.13, 0.25, 0.25] | Whitespace on the borders of the comment. Units are centimeter. Direction is left, top, right, bottom |\n\nNote: This ```inset``` setting takes effect only when the value of ```insetmode``` is 'custom'.\n\n### Cell Comments Protection\n\nSpecifying the lock status of objects and object text using protection attributes.\n\n```javascript\nws.getCell('B1').note.protection = {\n locked: 'False',\n lockText: 'False',\n};\n```\n\n### Supported Protection Properties[⬆](#contents)\n\n| Property | Required | Default Value | Description |\n| -------- | -------- | ------------- | ----------- |\n| locked | N | 'True' | This element specifies that the object is locked when the sheet is protected |\n| lockText | N | 'True' | This element specifies that the text of the object is locked |\n\nNote: Locked objects are valid only when the worksheet is protected.\n\n### Cell Comments EditAs[⬆](#contents)\n\nThe cell comments can also have the property 'editAs' which will control how the comments is anchored to the cell(s).\nIt can have one of the following values:\n\n```javascript\nws.getCell('B1').note.editAs = 'twoCells';\n```\n\n| Value | Description |\n| --------- | ----------- |\n| twoCells | It specifies that the size and position of the note varies with cells |\n| oneCells | It specifies that the size of the note is fixed and the position changes with the cell |\n| absolute | This is the default. Comments will not be moved or sized with cells |\n\n## Tables[⬆](#contents)\n\nTables allow for in-sheet manipulation of tabular data.\n\nTo add a table to a worksheet, define a table model and call addTable:\n\n```javascript\n// add a table to a sheet\nws.addTable({\n name: 'MyTable',\n ref: 'A1',\n headerRow: true,\n totalsRow: true,\n style: {\n theme: 'TableStyleDark3',\n showRowStripes: true,\n },\n columns: [\n {name: 'Date', totalsRowLabel: 'Totals:', filterButton: true},\n {name: 'Amount', totalsRowFunction: 'sum', filterButton: false},\n ],\n rows: [\n [new Date('2019-07-20'), 70.10],\n [new Date('2019-07-21'), 70.60],\n [new Date('2019-07-22'), 70.10],\n ],\n});\n```\n\nNote: Adding a table to a worksheet will modify the sheet by placing\nheaders and row data to the sheet.\nAny data on the sheet covered by the resulting table (including headers and\ntotals) will be overwritten.\n\n### Table Properties[⬆](#contents)\n\nThe following table defines the properties supported by tables.\n\n| Table Property | Description | Required | Default Value |\n| -------------- | ----------------- | -------- | ------------- |\n| name | The name of the table | Y | |\n| displayName | The display name of the table | N | name |\n| ref | Top left cell of the table | Y | |\n| headerRow | Show headers at top of table | N | true |\n| totalsRow | Show totals at bottom of table | N | false |\n| style | Extra style properties | N | {} |\n| columns | Column definitions | Y | |\n| rows | Rows of data | Y | |\n\n### Table Style Properties[⬆](#contents)\n\nThe following table defines the properties supported within the table\nstyle property.\n\n| Style Property | Description | Required | Default Value |\n| ------------------ | ----------------- | -------- | ------------- |\n| theme | The colour theme of the table | N | 'TableStyleMedium2' |\n| showFirstColumn | Highlight the first column (bold) | N | false |\n| showLastColumn | Highlight the last column (bold) | N | false |\n| showRowStripes | Alternate rows shown with background colour | N | false |\n| showColumnStripes | Alternate rows shown with background colour | N | false |\n\n### Table Column Properties[⬆](#contents)\n\nThe following table defines the properties supported within each table\ncolumn.\n\n| Column Property | Description | Required | Default Value |\n| ------------------ | ----------------- | -------- | ------------- |\n| name | The name of the column, also used in the header | Y | |\n| filterButton | Switches the filter control in the header | N | false |\n| totalsRowLabel | Label to describe the totals row (first column) | N | 'Total' |\n| totalsRowFunction | Name of the totals function | N | 'none' |\n| totalsRowFormula | Optional formula for custom functions | N | |\n\n### Totals Functions[⬆](#contents)\n\nThe following table list the valid values for the totalsRowFunction property\ndefined by columns. If any value other than 'custom' is used, it is not\nnecessary to include the associated formula as this will be inserted\nby the table.\n\n| Totals Functions | Description |\n| ------------------ | ----------------- |\n| none | No totals function for this column |\n| average | Compute average for the column |\n| countNums | Count the entries that are numbers |\n| count | Count of entries |\n| max | The maximum value in this column |\n| min | The minimum value in this column |\n| stdDev | The standard deviation for this column |\n| var | The variance for this column |\n| sum | The sum of entries for this column |\n| custom | A custom formula. Requires an associated totalsRowFormula value. |\n\n### Table Style Themes[⬆](#contents)\n\nValid theme names follow the following pattern:\n\n* \"TableStyle[Shade][Number]\"\n\nShades, Numbers can be one of:\n\n* Light, 1-21\n* Medium, 1-28\n* Dark, 1-11\n\nFor no theme, use the value null.\n\nNote: custom table themes are not supported by exceljs yet.\n\n### Modifying Tables[⬆](#contents)\n\nTables support a set of manipulation functions that allow data to be\nadded or removed and some properties to be changed. Since many of these\noperations may have on-sheet effects, the changes must be committed\nonce complete.\n\nAll index values in the table are zero based, so the first row number\nand first column number is 0.\n\n**Adding or Removing Headers and Totals**\n\n```javascript\nconst table = ws.getTable('MyTable');\n\n// turn header row on\ntable.headerRow = true;\n\n// turn totals row off\ntable.totalsRow = false;\n\n// commit the table changes into the sheet\ntable.commit();\n```\n\n**Relocating a Table**\n\n```javascript\nconst table = ws.getTable('MyTable');\n\n// table top-left move to D4\ntable.ref = 'D4';\n\n// commit the table changes into the sheet\ntable.commit();\n```\n\n**Adding and Removing Rows**\n\n```javascript\nconst table = ws.getTable('MyTable');\n\n// remove first two rows\ntable.removeRows(0, 2);\n\n// insert new rows at index 5\ntable.addRow([new Date('2019-08-05'), 5, 'Mid'], 5);\n\n// append new row to bottom of table\ntable.addRow([new Date('2019-08-10'), 10, 'End']);\n\n// commit the table changes into the sheet\ntable.commit();\n```\n\n**Adding and Removing Columns**\n\n```javascript\nconst table = ws.getTable('MyTable');\n\n// remove second column\ntable.removeColumns(1, 1);\n\n// insert new column (with data) at index 1\ntable.addColumn(\n {name: 'Letter', totalsRowFunction: 'custom', totalsRowFormula: 'ROW()', totalsRowResult: 6, filterButton: true},\n ['a', 'b', 'c', 'd'],\n 2\n);\n\n// commit the table changes into the sheet\ntable.commit();\n```\n\n**Change Column Properties**\n\n```javascript\nconst table = ws.getTable('MyTable');\n\n// Get Column Wrapper for second column\nconst column = table.getColumn(1);\n\n// set some properties\ncolumn.name = 'Code';\ncolumn.filterButton = true;\ncolumn.style = {font:{bold: true, name: 'Comic Sans MS'}};\ncolumn.totalsRowLabel = 'Totals';\ncolumn.totalsRowFunction = 'custom';\ncolumn.totalsRowFormula = 'ROW()';\ncolumn.totalsRowResult = 10;\n\n// commit the table changes into the sheet\ntable.commit();\n```\n\n\n## Pivot Tables[⬆](#contents)\n\nPivot tables provide powerful data analysis capabilities by summarizing and reorganizing data from a source worksheet.\n\n**⚠️ Note:** Pivot Table support is experimental. Please leave feedback at https://github.com/exceljs/exceljs/discussions/2575\n\n### Creating a Pivot Table\n\nTo add a pivot table to a worksheet, call `addPivotTable` with a configuration object:\n\n```javascript\nconst ExcelJS = require('exceljs');\nconst workbook = new ExcelJS.Workbook();\n\n// Create source data worksheet\nconst sourceSheet = workbook.addWorksheet('Data');\nsourceSheet.addRows([\n ['Region', 'Product', 'Category', 'Quarter', 'Amount'],\n ['North', 'Widget A', 'Electronics', 'Q1', 1000],\n ['South', 'Widget B', 'Electronics', 'Q1', 1500],\n ['North', 'Widget A', 'Electronics', 'Q2', 1200],\n ['South', 'Widget B', 'Home', 'Q2', 1800],\n ['East', 'Widget C', 'Home', 'Q1', 2000],\n ['West', 'Widget C', 'Home', 'Q2', 2200],\n]);\n\n// Create pivot table on a new worksheet\nconst pivotSheet = workbook.addWorksheet('Pivot');\npivotSheet.addPivotTable({\n sourceSheet: sourceSheet,\n rows: ['Region', 'Product'],\n columns: ['Quarter'],\n values: ['Amount'],\n metric: 'sum',\n});\n\nawait workbook.xlsx.writeFile('pivot-example.xlsx');\n```\n\n### Multiple Pivot Tables\n\nAs of this version, **multiple pivot tables per workbook are supported**. You can add pivot tables to different worksheets:\n\n```javascript\n// First pivot table\nconst pivotSheet1 = workbook.addWorksheet('Sales by Region');\npivotSheet1.addPivotTable({\n sourceSheet: dataSheet,\n rows: ['Region'],\n columns: ['Quarter'],\n values: ['Amount'],\n metric: 'sum',\n});\n\n// Second pivot table with different configuration\nconst pivotSheet2 = workbook.addWorksheet('Sales by Product');\npivotSheet2.addPivotTable({\n sourceSheet: dataSheet,\n rows: ['Product', 'Category'],\n columns: ['Quarter'],\n values: ['Amount'],\n metric: 'sum',\n});\n```\n\n### Page Fields (Report Filters)\n\nPage fields, also known as report filters, allow you to filter the entire pivot table by field values. Users can selec","readmeFilename":"README.md"}