减小 PowerPoint 演示文稿的文件大小 - Microsoft 支持
了解如何减小 PowerPoint 演示文稿的大小。 删除图像编辑数据和降低默认分辨率 默认情况下，编辑图像时，原始图像中的数据将保留 (，以确保可以在) 还原图像。
适用于:
Microsoft 365 专属 PowerPoint, PowerPoint 2021, PowerPoint 2019, PowerPoint 2016
Update Office with Microsoft Update - Microsoft Support
Learn how to update Microsoft Office through Windows Update if you're experiencing difficulties with the Office Updater.
适用于:
Office 2016, Microsoft 365 家庭版
Download free, pre-built templates - Microsoft Support
Find and download free templates to create documents like calendars, business cards, letters, greeting cards, brochures, newsletters, or resumes.
适用于:
Microsoft 365 专属 Excel, Microsoft 365 专属 Word, Microsoft 365 专属 PowerPoint, Microsoft 365 专属 Access, Project Online 桌面客户端, Microsoft 365 专属 Publisher, Excel 2021, Word 2021, PowerPoint 2021, Access 2021, Project 专业版 2021, Project Standard 2021, Publisher 2021, Excel 2019, Word 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Project 专业版 2016, Project Standard 2016, Publisher 2016, Visio 专业版 2016, Visio 2010, InfoPath 2013
디지털 게임에 대한 환불 요청 | Xbox Support
디지털 Xbox 콘텐츠 구매에 대한 환불 요청을 제출하는 방법을 알아봅니다. 환불은 일반적으로 상당한 플레이 시간이 누적되지 않은 게임의 경우 구매일로부터 14일 이내에 이루어진 요청에 대해 이루어집니다.
COUNT function - Microsoft Support
How to use the COUNT function in Excel to count the number of cells that contain numbers, and to count numbers within a list of arguments.
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
计算两个时间之间的差值 - Microsoft 支持
有几种方法可以计算两次之间的差值。 A B 1 开始时间 结束时间 2 2007/6/9 上午 10：35 2007/6/9 下午 3：30 3 公式 描述（结果） 4
适用于:
Microsoft 365 专属 Excel, Excel 2021, Excel 2019, Excel 2016
Delete a blank page - Microsoft Support
Learn how to delete a page in Word with ease using our step-by-step guide. Say goodbye to blank pages in your documents today! Read more now.
适用于:
Microsoft 365 专属 Word, Microsoft 365 Mac 版专属 Word, Word 2021, Word 2021 for Mac, Word 2019, Word 2019 for Mac, Word 2016
Microsoft Store 无法打开 - Microsoft 支持
如果 Windows 10 中的 Microsoft Store 无法启动，请尝试上述故障排除步骤。 另请参阅 我无法从 Microsoft Store 找到或安装应用 需要更多帮助吗？ 请联系支持人员
关于 Office：我使用的是哪个版本的 Office？ - Microsoft 支持
了解如何检查正在使用的 Office 版本。 查找 Office 应用的产品名称和版本号。 注意: 如果你没有看到帐户或你已打开一个文件或文档，请从菜单中，选择文件，然后从左侧的列表中选择帐户或帮助。
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, Microsoft 365 Mac 版专属 Excel, Microsoft 365 Mac 版专属 Word, Microsoft 365 Mac 版专属 Outlook, Microsoft 365 Mac 版专属 OneNote, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project 专业版 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Office 2019 for Mac, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project 专业版 2016, Project Standard 2016, Publisher 2016, Visio 专业版 2016, Visio 标准版 2016, Office 2016, OneNote for Mac, Microsoft 365 家庭版, Office 商业版, Office 365 小型企业版, Microsoft 365 管理员, 由世纪互联运营的 Office 365, 由世纪互联运营的 Office 365 - 小型企业管理员版, 由世纪互联运营的 Office 365 - 管理员版, Project Online, InfoPath 2013
Improve my PC performance in Windows - Microsoft Support
Explore subscription benefits, browse training courses, learn how to secure your device, and more.