Developer resources to extend Excel functionality with Office JavaScript API. Access Excel data over the web with REST API requests to Microsoft Graph.

Start developing on the Microsoft 365 platform today! Join the Developer Program to get a free instant sandbox and sample data packs including Teams.

Demonstrates how to automate Microsoft Excel and how to fill a multi-cell range with an array of values. Also illustrates how to retrieve a multi-cell range as an array by using automation.

Dec 9, 2025 · Explore this documentation designed for experienced developers who are new to building generative AI apps on Azure using Azure OpenAI Services and their favorite programming language.

Use the Office JavaScript API to extend functionality for Word, Excel, PowerPoint, and Outlook. Find documentation, training, blogs, samples, and more.

Explore Microsoft tools and resources for Python developers to build and deploy their apps faster.

Nov 21, 2025 · Find resources for Microsoft 365 development, including code samples, events, blog posts, and more.

Automate day-to-day tasks in Excel on the web, Windows, and Mac with Office Scripts. Record your actions with Action Recorder and modify the TypeScript language script with Code Editor.

This session demonstrates how Microsoft 365 Copilot can be used to quickly generate software test plans and test cases using natural language in Word and Excel.

Check out the latest features in the Microsoft Edge DevTools. Discover the tools that will help you to build better websites. Scan your site with WebHint, check the accessibility of your site with the …