Learn how to sign in, run the setup, and activate Microsoft 365 or Office 2021 on your device. Find out the system requirements, product keys, and troubleshooting tips for Office 2021 installation.

Learn about the new co-authoring, inking, data, and motion graphics tools in Office 2021. Compare Office 2021 with Microsoft 365 and Office LTSC 2021 for commercial customers.

Office 2021 is sold as a one-time purchase, which means you pay a single, up-front cost to get Microsoft 365 apps for one computer. One-time purchases are available for both PCs and Macs.

Learn about the features, support, and system requirements of Office 2021 and Office LTSC for Windows and Mac. Compare them with Microsoft 365 subscription plans and find out how to install and use them.

Word 2021. Word 2021 for Windows enables you to create compelling content and includes co-authoring, new stock media from the Office Premium Creative Content collection, and new Draw tab additions such as Point Eraser, Ruler, and Lasso.

Excel 2021 for Windows allows you to collaboratively work with others and analyze data easily with new Excel capabilities including co-authoring, Dynamic Arrays, XLOOKUP, and LET functions.

The new look of Office - Microsoft Support. Excel for Microsoft 365 Word for Microsoft 365 Outlook for Microsoft 365 More... Office has an updated look that provides a more simple and coherent experience, letting you easily focus on your work across all Office apps.

Outlook 2021 for Windows gives you new ways to communicate. This article provides an overview of the new features you can discover.

PowerPoint 2021 for Windows lets you create compelling content with the addition of features including co-authoring, Ink Replay, improved slide show recording, new stock media from the Office Premium Creative Content collection and new Draw tab additions such as Point Eraser, Ruler, and Lasso.

Excel. PowerPoint. OneNote. Microsoft Teams. Clipchamp. More help and training. Introducing Copilot for Microsoft 365. Achieve anything you can imagine with your AI companion in the Microsoft 365 apps you already use every day. Start your Copilot journey. Still using Office?