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Microsoft Graph
Use the Microsoft Graph API to connect to the data that drives productivity: mail, calendar, contacts, documents, directory, devices, and more.
Office UI Fabric
The official front-end framework for building experiences that fit seamlessly into Office and Office 365.
Developer Tools
Use our developer tools to build solutions for consumer and professional markets.
Script Lab
Script lab is an Office JavaScript API tool for anyone who wants to learn about writing Office add-ins for Excel, Word, or PowerPoint.