Build powerful applications for Excel
Extend Excel functionality and access Excel data over the web.
Extend Excel functionality with Office web add-ins
Record, edit, and create Office Scripts to automate tasks
Add your own
custom functions
Work with Microsoft Graph data
What's new in Excel development
Get OneDrive data using Microsoft Graph and msal.js in an Office Add-in
Changes in Export to PDF with sensitivity labeling and encryption in Office Add-ins
Office Add-in that supports Single Sign-on to Office, the Add-in, and Microsoft Graph
Office Add-ins community call – March 2022
Extend Excel functionality with Office Add-ins
With the Office Add-ins platform, you can extend Excel's functionality through a web app that runs within the Excel client on multiple platforms such as Windows, Online, Mac OS, iPad. This technology is enabled using the JavaScript API for Office known as Office.js. To learn more about creating an Excel add-in with Office.js, see Excel add-ins documentation.
For information about COM-based add-ins, see the Office client development documentation.
Access Excel data with Microsoft Graph
With Microsoft Graph, you can read and modify Excel workbooks that are stored in OneDrive, SharePoint, or other supported storage platforms. By issuing REST API requests to Microsoft Graph, your web or mobile application can access Excel objects. To learn more, see Working with Excel in Microsoft Graph.
