Spreadsheet File Format APIs for JavaScript

Open Source JavaScript APIs for Spreadsheets

Read, Write & Manipulate Microsoft Excel files via JavaScript.

Spreadsheet File Format APIs for JavaScript Include

SheetJS JS-XLSX Pure JavaScript implementation allows software developers to export, read and write the most popular format of Excel spreadsheets inside web browsers and servers.

xlsx-populate Open Source JavaScript API to Populate Excel data from a sheet, add/edit/move/delete worksheet, XLSX agile encryption or decryption and much more.