Master the art of Excel formulas with our comprehensive guide. Learn how to perform calculations, manipulate cell contents, and test conditions with ease.

Receive photos, videos, or other kinds of files that you or a friend shares from another device, such as a phone, laptop, or tablet. On your PC, select Start > Settings > Devices > Bluetooth & other devices. Learn how to pair.

Learn how to use function VLOOKUP in Excel to find data in a table or range by row. Our step-by-step guide makes vlookup in excel easy and efficient.

Learn how to use InPrivate browsing in Microsoft Edge if you don't want your browsing data saved on your PC.

How to track changes in Word using revision marks. Accept, reject, or hide changes made by others working in the file.

How to change the column width and row height, including how to use the AutoFit feature, in your Excel worksheet.

Learn how to type a letter online using Word for the web. Choose a letter template for online letter writing. Edit, send or print your letter online.

Use the Settings app in Windows to change screen orientation.

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Map a network drive to get to it from File Explorer in Windows without having to look for it or type its network address each time.