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Spreadsheet APIs
Programmatic access to spreadsheets and spreadsheet libraries.
JSON: /api/v1/directory.json (filter on category=spreadsheet-apis)
Google Sheets API
Read and write spreadsheets.
FreeOAuthMicrosoft Excel (Graph)
Excel workbook API.
PaidOAuthSheetJS
Read and write spreadsheets in JavaScript.
FreeNo authopenpyxl
Python Excel library.
FreeNo authSheetDB
Turn Google Sheets into an API.
Free tierAPI keySheety
REST API for Google Sheets.
Free tierAPI keySheet.best
Google Sheets as a REST API.
Free tierAPI keyExcelJS
Read and write Excel in Node.js.
FreeNo authApache POI
Java API for Office formats.
FreeNo authSmartsheet Sheets API
Smartsheet sheets and rows.
PaidAPI key