• build smarter apps with Excel

    Build powerful applications for Excel

    Extend Excel functionality and access Excel data over the web

Extend Excel functionality
with Office Add-ins

Access Excel data
with Microsoft Graph

New additions to Excel JavaScript APIs

Learn about recent additions to the Excel JavaScript APIs including the general availability of requirement sets 1.5 and 1.6 and public preview (beta) access for additional APIs.

Script Lab, a Microsoft Garage Project

Create, run, and share your own Excel add-in code directly from Excel and explore the collection of built-in code snippets.

Get started with Excel add-ins

Create an Excel add-in using familiar web technologies such as HTML, CSS, and JavaScript.

Microsoft Graph Explorer updated -- now with sample queries

Discover and run sample queries for Excel by using the Microsoft Graph Explorer.

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