# [SheetJS js-xlsx](http://sheetjs.com) Parser and writer for various spreadsheet formats. Pure-JS cleanroom implementation from official specifications, related documents, and test files. Emphasis on parsing and writing robustness, cross-format feature compatibility with a unified JS representation, and ES3/ES5 browser compatibility back to IE6. This is the community version. We also offer a pro version with performance enhancements, additional features by request, and dedicated support. [**Pro Version**](http://sheetjs.com/pro) [**Commercial Support**](http://sheetjs.com/support) [**Rendered Documentation**](http://docs.sheetjs.com/) [**In-Browser Demos**](http://sheetjs.com/demos) [**Source Code**](http://git.io/xlsx) [**Issues and Bug Reports**](https://github.com/sheetjs/js-xlsx/issues) [**Other General Support Issues**](https://discourse.sheetjs.com) [**File format support for known spreadsheet data formats:**](#file-formats)
Graph of supported formats (click to show) ![circo graph of format support](formats.png) ![graph legend](legend.png)
[**Browser Test**](http://oss.sheetjs.com/js-xlsx/tests/) [![Build Status](https://saucelabs.com/browser-matrix/sheetjs.svg)](https://saucelabs.com/u/sheetjs) [![Build Status](https://travis-ci.org/SheetJS/js-xlsx.svg?branch=master)](https://travis-ci.org/SheetJS/js-xlsx) [![Build Status](https://semaphoreci.com/api/v1/sheetjs/js-xlsx/branches/master/shields_badge.svg)](https://semaphoreci.com/sheetjs/js-xlsx) [![Coverage Status](http://img.shields.io/coveralls/SheetJS/js-xlsx/master.svg)](https://coveralls.io/r/SheetJS/js-xlsx?branch=master) [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2FSheetJS%2Fjs-xlsx.svg?type=shield)](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2FSheetJS%2Fjs-xlsx?ref=badge_shield) [![Dependencies Status](https://david-dm.org/sheetjs/js-xlsx/status.svg)](https://david-dm.org/sheetjs/js-xlsx) [![NPM Downloads](https://img.shields.io/npm/dt/xlsx.svg)](https://npmjs.org/package/xlsx) [![ghit.me](https://ghit.me/badge.svg?repo=sheetjs/js-xlsx)](https://ghit.me/repo/sheetjs/js-xlsx) [![Analytics](https://ga-beacon.appspot.com/UA-36810333-1/SheetJS/js-xlsx?pixel)](https://github.com/SheetJS/js-xlsx)