激活 Office - Microsoft 支持
解决激活错误. 如果 Microsoft 365 无法激活，其最后会变为未授权，且 Microsoft 365 的所有编辑功能都会被禁用。 Microsoft 可能由于多种原因变为未授权。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Office.com, Project for Office 365
VLOOKUP 函数 - Microsoft 支持
了解如何在 Excel 中使用函数 VLOOKUP 逐行查找表或区域中的数据。 我们的分步指南使 excel 中的 vlookup 变得简单高效。
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
How do I create a new account for Skype? - Microsoft Support
How do I create a new account for Skype? Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.
What is a Microsoft Exchange account? - Microsoft Support
A Microsoft Exchange account is a work or school email account. The organization that gave you the Exchange email account is running a Microsoft Exchange Server, or is using Microsoft 365 which uses Exchange Server to provide email.
Applies To:
Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Outlook 2013, Outlook Web App for Office 365, Outlook Web App
Add or remove a digital signature for Microsoft 365 files
Learn how to use digital signatures, digital IDs, and signature lines in Microsoft 365 files, such as Word, Excel, and PowerPoint.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel 2021, Word 2021, PowerPoint 2021, Excel 2019, Word 2019, PowerPoint 2019, Excel 2016, Word 2016, PowerPoint 2016
Fix USB-C problems in Windows - Microsoft Support
Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.
在 Outlook 中Create并添加电子邮件签名 - Microsoft 支持
在Outlook 中，可以为电子邮件创建一个或多个个性化签名。 签名可以包括文本、链接、图片和图像 (，例如手写签名或徽标) 。
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Outlook on the web, Outlook.com, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
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.
通过 Xbox Game Pass 获取 EA Play 订阅会员资格
访问 EA 帐户设置门户以管理你的电脑版 EA Play 订阅。通过 Origin 或 EA 应用（Beta 版本）获得的 PC 版 EA Play 订阅不会自动取消，并且你 PC 版 EA Play 订阅中的剩余时间将不会转换为 Xbox Game Pass Ultimate 或 PC Game Pass 的时间。
Find and lock a lost Windows device - Microsoft Support
Use Find my device to locate and lock your lost or stolen Windows devices.
Applies To:
Microsoft account dashboard