Create a drop-down list - Microsoft Support
Select the cell in the worksheet where you want the drop-down list. Go to the Data tab on the Ribbon, and then Data Validation. Note: If you can’t select Data Validation, the worksheet might be protected or shared. Unlock specific areas of a protected workbook or stop sharing the worksheet, and then try step 3 again.
适用于:
Microsoft 365 专属 Excel, Microsoft 365 Mac 版专属 Excel, Excel 网页版, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
撤回或替换已发送的电子邮件 - Microsoft 支持
试一试！. 如果你使用的是 Microsoft Outlook 应用或 Outlook.com，并且你和你的收件人都在 Microsoft Exchange 或 Microsoft 365 上，并且在同一组织中，则可以撤回或替换你发送的电子邮件。. 如果你使用的是新的 Outlook，请在此处了解如何召回邮件。. 重要: 但如果帐户是 MAPI ...
适用于:
Microsoft 365 专属 Outlook, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016
Create a presentation in PowerPoint - Microsoft Support
Create a presentation. Open PowerPoint. In the left pane, select New. Select an option: To create a presentation from scratch, select Blank Presentation. To use a prepared design, select one of the templates. To see tips for using PowerPoint, select Take a Tour, and then select Create, . Add a slide.
适用于:
Microsoft 365 专属 PowerPoint, PowerPoint 2021, PowerPoint 2019, PowerPoint 2016
在 Windows 中更改颜色 - Microsoft 支持
若要手动选择主题色，请在“ 最近使用的颜色 ”或“ Windows 颜色”下选择一种主题色，或选择“ 自定义颜色 ”以获取更详细的选项。或者选择“ 从背景中自动选取主题色 ”框，让 Windows 选择该颜色。你选择的主题色将有助于偏移和补充浅色模式。
Account help
Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile. Get Microsoft account help. Manage your personal account from a single dashboard, including payment information, purchases, subscriptions, and more. Go to your dashboard.
View printer queue in Windows - Microsoft Support
View printer queue in Windows. To view a list of items waiting to print in Windows 11: Select Start > Settings > Bluetooth & devices > Printers & scanners . Select your printer from the list and select Open print queue to see a list of what's printing and the upcoming print order.
在电脑上启用 TPM 2.0 - Microsoft 支持
键入“tpm.msc” (不使用引号) 并选择“确定”。 如果看到一条消息，指出“找不到兼容的 TPM”，则表示你的电脑的 TPM 可能已禁用。 有关启用 TPM 的说明，请参阅如何启用 TPM，了解详细信息或检查电脑制造商的支持信息。如果能够启用 TPM，请完成下一步以验证它是 TPM 2.0。
Activación de Office - Soporte técnico de Microsoft
Probar el soporte técnico guiado. Seleccione su versión de Microsoft 365 a continuación para obtener información sobre cómo activar Microsoft 365. Activar Microsoft 365 o una versión que no es de suscripción de Office. Activar Office preinstalado en un dispositivo Windows nuevo. Activar una compra de Office u oferta incluida en un ...
适用于:
Microsoft 365 专属 Excel, Microsoft 365 专属 Word, Microsoft 365 专属 Outlook, Microsoft 365 专属 PowerPoint, Microsoft 365 专属 Access, OneNote for Microsoft 365, Microsoft 365 专属 Publisher, Visio 计划 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 家庭版, Office 商业版, Office.com, Project for Office 365
Microsoft Support
Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.
如果文件资源管理器不能打开或启动，进行修复 - Microsoft 支持
如果文件资源管理器不能打开或启动，进行修复. 注意: 文件资源管理器工具与 Microsoft Edge 不同。. 若要打开 Microsoft Edge，请在任务栏上的搜索框中键入 Microsoft Edge ，然后从结果中选择它。. 若要在Windows 11中打开文件资源管理器，请在任务栏上选择“文件资源 ...