June 11, 2024—KB5039214 (OS Build 14393.7070)
Windows 10, version 1909 and Windows Server, version 1909 update history; End of service statement; May 10, 2022—KB5013945 (OS Build 18363.2274)
保存文件 - Microsoft 支持
在早期版本的 Office 应用中保存文件. 在较新版本的 Office 中，可以通过从“另存为”框中的“另存为类型”列表中选择版本，将文件保存到应用的早期版本。 打开文档格式. Microsoft 365 支持以 OpenDocument 格式 (.odp) 保存文件的功能。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, PowerPoint 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, PowerPoint 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, PowerPoint 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016
Microsoft Authenticator のダウンロード - Microsoft サポート
Microsoft Authenticator アプリは、2 段階認証を使用しているときにアカウントにサインインするのに役立ちます。
Xbox Support
Xbox Support では、Xbox、Game Pass、請求に関する質問のヘルプを提供しています。Xbox Support コミュニティでアドバイスやカスタマー サービスを受けることができます。
Excel 函数（按类别列出） - Microsoft 支持
函数. 说明. cubekpimember 函数. 返回重要性能指示器 (kpi) 属性，并在单元格中显示 kpi 名称。 kpi 是一种用于监控单位绩效的可计量度量值，如每月总利润或季度员工调整。
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
Microsoft 365 语言配件包 - Microsoft 支持
了解如何下载、安装和配置 Microsoft 365 语言配件包，以向 Microsoft 365 添加其他显示、帮助和校对工具。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Office.com
Excel 帮助和学习
查找 Microsoft Excel 帮助和学习资源。 了解如何有效使用 Excel 的指导文章、指南、培训视频和提示。
Internet Explorer help - Microsoft Support
Internet Explorer 11 support ended. Support for Internet Explorer 11 ended on June 15, 2022. If any site you visit needs Internet Explorer, you can reload it with Internet Explorer mode in Microsoft Edge.. Get started with Microsoft Edge
Download and install Skype for Business on Windows
Skype for Business makes it easy to connect and collaborate with coworkers and business partners around the world: Start instant message conversations and voice or video calls.
Applies To:
Skype for Business, Skype for Business Online
Xbox console and accessory manuals | Xbox Support
Get manuals for Xbox consoles and all Xbox accessories in your language.