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SUMIFS function - Microsoft Support
Problem. Description. 0 (Zero) is shown instead of the expected result. Make sure Criteria1,2 are in quotation marks if you are testing for text values, like a person's name.. The result is incorrect when Sum_range has TRUE or FALSE values.. TRUE and FALSE values for Sum_range are evaluated differently, which may cause unexpected results when they're added. ...
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
Microsoft 帐户安全信息和验证码 - Microsoft 支持
为什么需要验证码? 当你登录到你的 Microsoft 帐户时,我们可能会要求提供其他证明,证明确实是你的帐户。 最多可以添加 10 种不同的方法来验证登录,并且可以选择:
Applies To: Microsoft account dashboard
Use mail merge to send bulk email messages - Microsoft Support
To be able to send bulk email via mail merge, you must already have installed a MAPI-compatible email program such as Outlook or Gmail. The following process assumes that you already have the message you intend to send created and open in Microsoft Word.
Applies To: Word for Microsoft 365, Word for Microsoft 365 for Mac, Word 2021, Word 2021 for Mac, Word 2019, Word 2019 for Mac, Word 2016
Troubleshoot Windows Media Player Errors - Microsoft Support
Repair or reset Windows Media Player: If Windows Media Player is not working properly, you can try to repair or reset it to its default settings.To do this, Select Start > Settings > Apps > Installed Apps.. Scroll down and click the three horizontal dots next to Windows Media Player and choose Advanced options, and click the Repair or Reset button. Note that resetting Windows Media Player will ...
欢迎使用 Word 中的 Copilot - Microsoft 支持
无论是创建新文档还是处理现有文档,Copilot 都可以帮助你继续操作。 在新文档、空白文档中或在现有文档中创建新行时,将显示“使用 Copilot 草稿”体验。 你提供的说明可以是一个简单的句子,也可以是一个更复杂的请求,其中包含要使用 Copilot 的大纲、备注或引用的文件。
Applies To: Word for Microsoft 365, Word for Microsoft 365 for Mac, Word for the web, Word for iPad
Office Help & Training
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Windows 11和安全启动 - Microsoft 支持
发布时间:2021 年 8 月. 本文适用于由于电脑当前无法安全启动而无法升级到 Windows 11的用户。 如果你不熟悉此级别的技术详细信息,我们建议你查阅电脑制造商的支持信息,获取特定于你的设备的更多说明。
How do I open a protected message? - Microsoft Support
Protected messages allow the sender to set specific permissions on a message, such as Do Not Forward or Do Not Print. If you receive a protected email message sent to the work or school account you use with Microsoft 365 in Outlook or Outlook on the web, the message should open like any other message.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, New Outlook for Windows, Outlook for Android, Outlook for iOS
Edit or delete a sent message in Microsoft Teams
There's no limit to how many times you can make changes to a sent message. Delete a sent message. If you need to backtrack and delete something you just sent, go to the message and select More options > Delete.. If you haven't sent the message yet, select Format to expand the box and then click Delete in the upper right-hand corner.. Undo a deleted message
Applies To: Microsoft Teams
相机在 Windows 中不工作 - Microsoft 支持
如果遇到未从 中安装的应用的问题Microsoft Store,请确保 允许桌面应用访问相机已打开。无法关闭单个桌面应用的相机访问权限。 Internet 浏览器(如 Microsoft Edge)和许多视频会议应用(如 Microsoft Teams)是需要启用此设置的桌面应用。