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Office Help & Training
Get help and training for Office products, such as Word, Excel, PowerPoint, and Outlook. Learn tips and tricks, troubleshoot issues, and access online resources.
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Get help with your questions about Microsoft Teams from our how-to articles, tutorials, and support content.
使用 Outlook 发送大文件 - Microsoft 支持
使用文件共享、云服务或其他解决方案发送大型文件,以便在 Outlook 中解决文件大小限制。
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
How to get and use app passwords - Microsoft Support
After you turn on two-step verification or set up the Authenticator app, you may run into issues if you use older devices (like Xbox 360 or a mail-sending security camera) that don't support two-step verification. For those devices, you can sign in with an app password instead. An app password is a long, randomly generated password that you provide only once instead of your regular password ...
View and delete browser history in Microsoft Edge
Types of info. What will be deleted. Where it's stored. Browsing history. The URLs of sites you've visited, and the dates and times of each visit. On your device (or, if sync is turned on, across your synced devices)
回想你在 Outlook 中发送的电子邮件 - Microsoft 支持
通过邮件撤回,可从尚未打开你发送的邮件的收件人的邮箱中撤回该邮件。 你也可以替代为替换邮件。 例如,如果忘记包括附件,可尝试撤回该邮件,然后发送带附件的替换邮件。
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Outlook on the web, Outlook.com, New Outlook for Windows
如何兑换礼品卡和代码 | Xbox Support
按“开始”按钮 ,然后在“搜索”框中输入“Xbox”。 从结果中选择 Xbox 应用以打开该应用。; 选择左上角的玩家图片,然后选择“设置”。 在“兑换代码”下选择“兑换”。 输入由 25 个字符组成的代码,选择 下一步,然后按照提示操作。
如何在任意位置注销你的 Microsoft 帐户 - Microsoft 支持
如果你认为有人可能未经授权访问你的帐户,我们可以通过从所有受信任的设备注销来保护你。 在 24 小时内,你将注销浏览器、应用以及你的帐户用于登录的任何其他位置(Xbox 主机除外)。
Applies To: Microsoft account dashboard
Windows 帮助和学习
查找有关 Windows 操作系统的帮助和操作方法文章。 获取对 Windows 的支持,并了解安装、更新、隐私、安全等方面的信息。
IFERROR 函数 - Microsoft 支持
示例. 复制下表中的示例数据,然后将其粘贴进新的 Excel 工作表的 A1 单元格中。 要使公式显示结果,请选中它们,按 F2,然后按 Enter。
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