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Use the SUM function to sum numbers in a range - Microsoft Support
You can use a simple formula to sum numbers in a range (a group of cells), but the SUM function is easier to use when you’re working with more than a few numbers. For example =SUM (A2:A6) is less likely to have typing errors than =A2+A3+A4+A5+A6.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Create a 3-D reference to the same cell range on multiple worksheets
A 3-D reference is useful and convenient way to reference several worksheets that follow the same pattern and cells on each worksheet contain the same type of data, such as when you consolidate budget data from different departments in your organization.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Look up values with VLOOKUP, INDEX, or MATCH - Microsoft Support
The VLOOKUP and HLOOKUP functions, together with INDEX and MATCH,  are some of the most useful functions in Excel. Note: The Lookup Wizard feature is no longer available in Excel. Here's an example of how to use VLOOKUP. =VLOOKUP (B2,C2:E7,3,TRUE) In this example, B2 is the first argument —an element of data that the function needs to work.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Request a refund for digital games | Xbox Support
Find out how to submit a request for a refund for a purchase of digital Xbox content.
Sign in to SharePoint - Microsoft Support
Sign in to SharePoint. SharePoint is a browser-based app that you connect to through your web browser, like so: Go to office.com, and sign in to your work or school account. In the upper left corner of the window, select the app launcher > All apps > SharePoint.
Applies To: SharePoint in Microsoft 365
Screen mirroring and projecting to your PC or wireless display
If you’re working on a Windows PC and want the apps and content from another device to show on your PC screen, you’ll want to consider mirroring that device‘s screen or projecting it to your PC. Note that you’ll need a device that supports Miracast. Here’s how to mirror another screen or project to your PC. Windows 11 Windows 10.
How to use cloud gaming | Xbox Support
See how Xbox cloud gaming works on Android, Apple, and Windows devices, as well as Xbox consoles and Samsung smart TVs.
Create a named range from selected cells in a worksheet
You can quickly create a named range by using a selection of cells in the worksheet. Note: Named ranges that are created from selecting cells have a workbook-level scope. Select the range you want to name, including the row or column labels. Click Formulas > Create from Selection.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016, Excel 2013
Fix sound or audio problems in Windows - Microsoft Support
If the Get Help app is unable to resolve your sound or audio issue, try the possible solutions listed: Windows 11 Windows 10. 1. Check your speaker output. 2. Run the audio troubleshooter. 3. Verify that all Windows Updates are installed. 4. Check your cables, plugs, jacks, volume, speaker, and headphone connections. 5. Check sound settings. 6.
更新和分享你的 Xbox 愿望清单 | Xbox Support
转到 xbox.com/games,然后登录到 Microsoft 帐户。. 选择“愿望清单”,然后选择“设置”图标 。. 在“设置”弹出窗口中,选择“我可以与其他人共享此清单,并且任何人都可以找到并查看”。. 选择“共享愿望清单”图标以复制链接并与他人共享你的愿望清单。.