Use PowerPoint Designer to create stunning slides with professional layouts and tips. Learn how to access and apply this feature in Microsoft 365.

You can refer to the contents of cells in another workbook by creating an external reference formula. An external reference (also called a link) is a reference to a cell or range on a worksheet in another Excel workbook, or a reference to a defined name in another workbook.

Learn how to manage background activity for apps to help save battery power in Windows.

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

After launching an Office app, you might receive a message that says Get genuine Office.. If you see this, we've determined that the Office product installed on your device isn't legitimate and you may be a victim of software counterfeiting.

Découvrez comment installer, réinstaller ou activer Microsoft 365 ou Office 2019 sur un PC ou Mac.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Get troubleshooting tips if you run into problems downloading, installing, or updating Microsoft Edge.

Learn how to use OneDrive Files On-Demand to sync your OneDrive files and save disk space in Windows 10.

Collections in Microsoft Edge helps you keep track of your ideas on the web, whether you're shopping, planning a trip, collecting notes for research or lesson plans, or just want to pick up where you left off the last time you were browsing the internet.