A workbook is a file that contains one or more worksheets to help you organize data. You can create a new workbook from a blank workbook or a template. By default, a new workbook contains three worksheets, but you can change the number of worksheets that you want a new workbook to contain. You can also add and remove worksheets as needed.

When you’re connected to the internet and using a proxy server while browsing the web, that traffic goes through the proxy server instead of coming directly from your Windows 11 PC.

Training: Watch these videos to help your school, work, or organization use Microsoft Teams to video conference, work remotely, and become proficient using Teams.

Learn what to do if you get a message telling you that your user profile is corrupted.

Find the information you need to import to or exporting from Outlook, whether you're using Office 365, Outlook 2016, or a Mac.

Enjoy advanced protection against phishing and malware, no ads, and other premium features for your Outlook.com account – all part of your Microsoft 365 subscription.

Find out how to stop Windows Security from alerting you about or blocking a trusted file, file type, or process, by adding it to the exclusions list.

Need help setting up an Xbox account or signing in to Xbox on your console, PC, or mobile device? This solution will help you sign in or create a new account.

How to use the SUBTOTAL function in Excel to return a subtotal in a list or database.

Turn on Focused Inbox, and move items between Focused and Other folders, Includes instructions for new Outlook, classic Outlook, and the web versions of Outlook.