Build powerful applications for Excel
Extend Excel functionality and access Excel data over the web.
Extend Excel functionality and access Excel data over the web.
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.
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.
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