Digital signatures and certificates - Microsoft Support
Digital signatures provide assurances about the validity and authenticity of digital documents.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, PowerPoint 2021, Access 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, PowerPoint 2019, Access 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Visio Professional 2016, Visio Standard 2016
Windows Media Player - Microsoft Support
Learn how to download and customize Windows Media Player. Get troubleshooting help and how-to information for Windows Media Player 12.
Change notification settings in Windows - Microsoft Support
Learn how to change app notifications, banners, and sound settings in Windows.
Remove a page break - Microsoft Support
How to remove manual page breaks in Word, and adjust where automatic page breaks occur in your documents.
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
Send feedback to Microsoft with the Feedback Hub app
Learn how to use Feedback Hub to report problems or send suggestions to Microsoft.
Insert data from picture - Microsoft Support
Learn how to insert data from a picture with Excel - and you can use your smartphone or tablet to take the picture. Excel's powerful AI capabilities can convert your hand written or printed data into a table.
Applies To:
Excel for Microsoft 365
将数据从行转置到列，或将数据从列转置到行 - Microsoft 支持
注意: 如果数据位于 Excel 表中，则“转置”功能不可用。您可以 将 表格 转换为区域 中首先，或可以使用 TRANSPOSE 函数 旋转的行和列。
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Filter websites and searches using Microsoft Family Safety
Use family safety settings to block inappropriate websites and searches on Windows, Xbox and mobile devices.
Applies To:
Microsoft Family Safety
Convert numbers into words - Microsoft Support
Discover how to convert numbers into English words in an Excel spreadsheet using the SpellNumber sample function.
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
What is: Multifactor Authentication - Microsoft Support
Wondering what multifactor authentication, sometimes known as two step verification, is? This article will explain it clearly.