适用于 Windows 和 Mac 的 Office 2021 和 Office LTSC 常见问题解答
Microsoft Office 2021 是捕获、分析和组织想法所需的必要工具。 其包含一次性购买的 Office 应用的经典版本。 Office 家庭版和学生版 2021 - 适用于想要在一台电脑或 Mac 上安装经典 Office 应用以供家庭或学校使用的学生和家庭。包含安装在一台电脑或 Mac 上的经典 Word、Excel、PowerPoint 以及 OneNote 版本。
Applies To:
Office 2021, Office 2021 for Mac
PowerPoint 支持的视频和音频文件格式 - Microsoft 支持
建议的格式. 视频:.mp4 使用 H.264 视频和 AAC 音频编码的文件. 音频:.m4a使用 AAC 音频编码的文件. 这些名称和格式听起来可能很复杂,但你可以轻松地转换为并使用这些格式,而无需知道除名称以外的任何内容。
Applies To:
PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint 2024, PowerPoint 2024 for Mac, PowerPoint 2021, PowerPoint 2021 for Mac, PowerPoint 2019, PowerPoint 2019 for Mac, PowerPoint 2016, PowerPoint for iPad, PowerPoint for iPhone, PowerPoint for Android tablets, PowerPoint for Android phones, PowerPoint for Windows Phone 10, PowerPoint Mobile
Send an email to a channel in Microsoft Teams
Notes: This feature needs to be turned on by your IT admin. Also, sending email to a channel isn't available if you're using Teams as part of an Office 365 Government plan.. In the case of email attachments, a unique ID is appended at the end of file name to support retry requests for uploading files with same name.
Applies To:
Microsoft Teams
How to use the PC Health Check app - Microsoft Support
Note: If a compatibility issue has been identified on your device that would disrupt your experience using Windows 11, we will temporarily delay your upgrade until the issue is resolved.Compatibility safeguard holds help ensure you have the best experience possible when upgrading and your productivity is not disrupted if critical apps or drivers are not yet compatible.
Choose which OneDrive folders to sync to your computer
If you don't want to sync all of your folders in OneDrive to your computer, you can use the OneDrive app for Windows and macOS to select which folders you'd like to have visible in File Explorer or Finder.. When viewing Windows or Mac via a web browser or mobile app, you will always see all your folders.
Applies To:
OneDrive for Business 24, OneDrive for Business, SharePoint Server Subscription Edition, SharePoint Server 2019, Office for business, OneDrive (work or school), OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
Send feedback to Microsoft with the Feedback Hub app
Tip: If you encounter a problem on your Windows device, pressing the Windows logo key + F takes a screenshot, then opens the Feedback Hub app and automatically uploads the screenshot to the Feedback tab. Follow the on-screen instructions to detail the problem you've encountered.
Set up text messaging as your verification method
Change your default security info method. If you want text messaging to be the default method used when you sign in to your work or school account using two-factor verification or for password reset requests, you can set it from the Security info page.
Change or reset Internet Explorer settings - Microsoft Support
Change Internet Explorer settings. There are many changes you can make to customize your browsing experience in Internet Explorer. To view all settings and options, open Internet Explorer on the desktop, select Tools > Internet options.. Reset Internet Explorer settings
Send an emoji, GIF, or sticker in Microsoft Teams
Add an emoji. To add an emoji to a message, tap Emoji beneath the box, choose an emoji gallery including Smilies, Hand gestures, People, Animals, Food, Travel and places, Objects, Activities, and Symbols, and then choose the emoji that you want to send.. Even more fun and expressiveness is here with an expanded selection of over 800 emojis over nine galleries that introduce a wide range of ...
Applies To:
Microsoft Teams
Insert a form or quiz into PowerPoint - Microsoft Support
Important: If you're unable to insert a form, make sure your web add-ins aren't disabled.In PowerPoint, select Files > Options > Trust Center > Trust Center Settings.In the Trust Center dialog box, choose Trusted Add-in Catalogs.Under Use these settings to manage your web add-in catalogs, uncheck both, Don't allow any web add-ins to start and Don't allow web add-ins from the Office Store to start.
Applies To:
PowerPoint for Microsoft 365, PowerPoint for the web, Microsoft Forms