Use mail merge for bulk email, letters, labels, and envelopes
Data sources. Your first step in setting up a mail merge is to pick the source of data you'll use for the personalized information. Excel spreadsheets and Outlook contact lists are the most common data sources, but if you don't yet have a data source, you can type it up in Word, as part of the mail merge process.
Applies To:
Word for Microsoft 365, Word for Microsoft 365 for Mac, Word for the web, Word 2021, Word 2021 for Mac, Word 2019, Word 2019 for Mac, Word 2016, Word 2016 for Mac
在 Windows 中配对蓝牙设备 - Microsoft 支持
在快速设置中： 若要查找蓝牙的快速设置，请选择任务栏右侧的时间和日期旁边的 网络、 声音或 电池 图标 ( ) 。选择“蓝牙 ”将其打开。 如果在未连接任何蓝牙设备的情况下打开，则它可能显示为“未连接 ”。 如果在快速设置中看不到蓝牙 ，则可能需要添加它。
COUNTIFS function - Microsoft Support
This video is part of a training course called Advanced IF functions.. Syntax. COUNTIFS(criteria_range1, criteria1, [criteria_range2, criteria2]…) The COUNTIFS function syntax has the following 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, Excel Web App
使用 Office 脱机安装程序 - Microsoft 支持
为帮助你解决在安装 Microsoft 365 时因为速度慢或连接不可靠而可能遇到的问题，首先第一步请下载支持和恢复助手工具。 （有关此工具的信息，请转到此处。. 脱机安装程序手动步骤
Applies To:
Office 2021, Office 2019, Office 2016, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com
Count numbers or dates based on a condition - Microsoft Support
To count numbers or dates that meet a single condition (such as equal to, greater than, less than, greater than or equal to, or less than or equal to), use the COUNTIF function. To count numbers or dates that fall within a range (such as greater than 9000 and at the same time less than 22500), you can use the COUNTIFS function. Alternately, you can use SUMPRODUCT too.
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
在 Windows 11 中使用相机设置管理相机 - Microsoft 支持
注意: 某些相机将不会显示在“相机设置”页中。其中包括用于 Windows Hello 人脸身份验证的红外线 (IR) 摄像头、使用 DirectShow 技术（如 DSLR 或运动相机制造商提供的便于将其设备用作网络摄像头的许多应用）的相机，以及不由 Windows 管理的专有相机，例如工业相机和许多网络摄像头。
Microsoft Edge help & learning
Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.
Create a site with SharePoint Online - Microsoft Support
Training: Switch to SharePoint Online from Google Sites and start working together with these quick instructions on how to access, upload, and share the content, information, and apps your team relies on with SharePoint Online.
Applies To:
SharePoint in Microsoft 365
Windows help and learning
Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
Activer Windows - Support Microsoft
Si vous installez Windows sur un nouvel appareil ou une carte mère pour la première fois et que vous n’avez pas de clé de produit, sélectionnez Je n’ai pas de clé de produit pendant les écrans d’installation. À l’invite, entrez le compte Microsoft à utiliser pour acheter une licence numérique pour cet appareil.