登录到 microsoft365.com 以查看Microsoft 365 工作或学校帐户。 登录. 安装和管理应用。 在 Office 应用 卡上，选择“ 管理”，然后选择“ 安装 ”以安装或重新安装最新的桌面应用或其他应用，例如 Project 或 Visio 。(只要管理员 为你分配了许可证 并授予你自安装的权限，安装选项就可用。

选择所选扩展所需的访问权限： 单击扩展时： 此设置仅允许扩展在单击扩展时访问打开的选项卡或窗口中的当前站点。如果关闭选项卡或窗口，则必须单击该扩展才能再次打开它。

To capture someone's attention in an email or meeting invite, type the @ symbol followed by their name within the message or invite. Doing so will highlight their name and prompt Outlook to add them to the To line, ensuring they notice, and add the @ symbol next to their message in the Inbox.

Try it! Keep track of everyone you communicate with by creating and editing contacts in Outlook for Windows. Once you’ve saved someone as a contact, you can type the first few letters of their name into an email, and Outlook for Windows will fill in their email address for you.

Important: Workbook links are considered potentially unsafe and must be enabled when you open a formula workbook.When you open a formula workbook, click Enable Content in the Message Bar to allow the workbook links to function. If you don't, Excel keeps the most recent values and disables refreshing the links with values from the data workbook.

In Windows 10, action center is where you'll find your app notifications and quick actions—which give you quick access to commonly used settings and apps.

Notes: The site usage report download does not include data for Shared with external users in the report.. The site usage report download does not include data for average time spent per user.. To export a Shared with external users report, you need to extract this data to a CSV file by clicking the Run Report button on the bottom right corner of the page.

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加载项为 Microsoft Excel 提供可选的命令和功能。 默认情况下，加载项在 Excel 中不立即可用，因此在某些情况下，必须首先安装和 激活这些加载项，以便您可以使用它们。 某些加载项内置于 Excel 中，例如规划求解和分析工具库。 其他一些加载项可从下载中心获取，必须先下载并安装。

You can use the Office language options to add a language, to choose the UI display language, and to set the authoring and proofing language. The language options are in the Set the Office Language Preferences section of the Office Options dialog box, which you can access by going to File > Options > Language.The display and authoring languages can be set independently.