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.

Build any type of application. Work together in real time. Diagnose and stop problems before they happen. Use your favorite language to deliver apps and services on any platform, any device.

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

Join the Microsoft 365 Developer Program. Get resources and information to help you build solutions for the Microsoft 365 platform, including recommendations tailored to your areas of …

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.

Bicep and Terraform templates make it easy for you to deploy Microsoft Graph resources throughout your development lifecycle as part of your infrastructure-as-code solution.

Azure Developer Hub. Make your cloud-based apps stronger, take them farther, and do it all faster with Azure. Download the latest updates and best-in-class tools. Find the perfect code …

Enjoy access to tools, resources, and support for app distribution and analytics for increased reach and monetization.

Build a sample app that connects to Microsoft 365 and calls the Microsoft Graph OneDrive API. Choose your language including C#, Python, PhP, JavaScript, and others, and get up and …