Learn how to create and add a signature to email messages you send in Outlook.com.

Warning: Excel provides the DATEDIF function in order to support older workbooks from Lotus 1-2-3.The DATEDIF function may calculate incorrect results under certain scenarios. Please see the known issues section of this article for further details.

Learn how to set up Microsoft Family Safety to manage screen time, filter content, and share location with your family members.

Export Outlook email, contacts, and calendar to move them to another computer or so that you can make a backup of your information.

Sign out of Teams. While it's a good idea to remain signed in to continue receiving chats, notifications, incoming calls, and other activities, sometimes you might want to sign out of Teams to use another account or for other reasons.

Use Excel to create a chart from scratch or with recommended charts. Learn how to add a trendline and customize your chart style.

Training: Get up and running quickly on Sway with our online Quick Start.

Learn how to AutoSave your files to OneDrive with Excel, PowerPoint or Word.

Create and send personalized email messages to everyone on your address list with mail merge.

Linking Microsoft personal accounts. It’s not possible to link, merge or combine Microsoft personal accounts, and you can't you transfer such things as your game progress or gamertag, account purchases and balance from one account to another, but accounts can be used side by side.