To prevent other users from accidentally or deliberately changing, moving, or deleting data in a worksheet, you can lock the cells on your Excel worksheet and then protect the sheet with a password.

Installer Microsoft 365 pour la première fois. Certains produitsOffice 2019, Office 2016, et Office 2013 sont fournis avec une clé de produit.

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

Use the Xbox mobile app, the Xbox Game Pass app, or the Microsoft Store on PC to remotely install games—so your games are ready when you are.

Learn about the quotas and differences between Microsoft storage and email storage.

Smart App Control is a feature of Windows 11 that helps to block malicious, untrusted, or potentially unwanted apps from running on your device.

Training: How to save and upload files and folders to OneDrive in your browser or on your desktop.

Microsoft Office Specialist--Pass an exam in a specific Office program to earn a Microsoft Office Specialist certification.Being certified as a Microsoft Office Specialist demonstrates you have the skills needed to get the most out of Office.

What you can customize: You can personalize your ribbon to arrange tabs and commands in the order you want them, hide or unhide your ribbon, and hide those commands you use less often.Also, you can export or import a customized ribbon. What you can't customize: You can't reduce the size of your ribbon, or the size of the text or the icons on the ribbon.

Stay connected to the Xbox community! See what friends are up to, start a text or voice chat, and find players for multiplayer games.