View previous versions of Office files - Microsoft Support
Use Version History to view previous versions of files stored in OneDrive or SharePoint libraries.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Excel for the web, Excel 2021, Word 2021, PowerPoint 2021, Excel 2021 for Mac, Word 2021 for Mac, PowerPoint 2021 for Mac, Excel 2019, Word 2019, PowerPoint 2019, Excel 2019 for Mac, Word 2019 for Mac, PowerPoint 2019 for Mac, Excel 2016, Word 2016, PowerPoint 2016
Manage app permissions for your camera in Windows
To use your camera with apps on Windows 11, you'll need to turn on some permissions in Camera settings. Then, you'll need to check your app permissions if you want to use your camera with apps.
Manage background activity for apps in Windows
Learn how to manage background activity for apps to help save battery power in Windows.
Find out which Surface model you have - Microsoft Support
Look in the Surface app. The easiest way to find which Surface model you have is to use the Surface app. It shows the model name of your Surface device and each Surface accessory.
Ways to install Windows 11 - Microsoft Support
Learn how to install Windows 11, including the recommended option of visiting the Windows Update page in Settings.
Create workbook links - Microsoft Support
You can refer to the contents of cells in another workbook by creating an external reference formula. An external reference (also called a link) is a reference to a cell or range on a worksheet in another Excel workbook, or a reference to a defined name in another workbook.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
COUNT function - Microsoft Support
How to use the COUNT function in Excel to count the number of cells that contain numbers, and to count numbers within a list of arguments.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Xbox Support
Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.
DATE function - Microsoft Support
The DATE function returns the sequential serial number that represents a particular date.. Syntax: DATE(year,month,day) The DATE function syntax has the following arguments: Year Required.The value of the year argument can include one to four digits. Excel interprets the year argument according to the date system your computer is using. By default, Microsoft Excel for Windows uses the 1900 ...
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Using the Windows Activation troubleshooter - Microsoft Support
Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.