在 Mac 上，选择“ 文件 ”菜单，然后选择 “打开 (或只需按 Command + O) 即可转到”文件打开“对话框。 若要从 Microsoft 365 组或 SharePoint Online 文档库访问文件，请单击“ 网站 - 你的公司” 链接。 系统会列出你经常访问的组和网站供选择。 选择一个组或网站，浏览到想打开的文件。

Connect with our small business advisors for help making Microsoft 365 products work for you and everyone in your business. Learn more. Install on a PC Install on a Mac Need help? Sign in to download Microsoft 365 or Office. Go to www.office.com and if you're not already signed in, select Sign in.

Windows 10. There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly. Windows 11 Windows 10.

. Games & apps. Troubleshoot Game Bar on Windows. If you’re having trouble using Game Bar—like getting keyboard shortcuts to work—here are some things to try. Things to keep in mind: Before you begin troubleshooting any of the following problems, first verify that you have the latest version of Windows and that all Windows updates are complete:

Info. Questions about a refund email? We’re investigating this issue now. In the meantime, sign in to your account to see your latest refund request status. We understand that sometimes purchases of digital game products don’t go as planned. When that happens, we’ll help you request a refund.

Windows 11 Windows 10. If you’re working on a Windows PC and want the apps and content from another device to show on your PC screen, you’ll want to consider mirroring that device‘s screen or projecting it to your PC. Note that you’ll need a device that supports Miracast. Here’s how to mirror another screen or project to your PC.

PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC. How to open PC Health Check.

其实用查找函数很容易做到。 VLOOKUP 和 HLOOKUP 函数，以及 INDEX 和 MATCH 是 Excel 中一些最有用的函数。 注意: Excel 中不再提供“查找向导”功能。 下面是如何使用 VLOOKUP 的示例。 =VLOOKUP (B2,C2:E7,3,TRUE) 在此示例中，B2 是第一个 参数 ，即函数运行所需的数据元素。 VLOOKUP 第一个参数是要查找的值。 此参数可以是单元格引用，也可以是固定值，例如“smith”或 21,000。 第二个参数是单元格搜索范围 C2-:E7，VLOOKUP 在其中搜索要查找的值。 第三个参数是单元格范围内包含所查找值的列。 第四个参数可选。 输入 True 或 False。

安装 Windows 11 的其他方法（不推荐）. 使用安装助手进行升级. 我们建议你等到设备可以升级到 Windows 11 后再使用安装助手。. 准备就绪后，可以在 Windows 11 软件下载页 上找到它。. 创建 Windows 11 安装媒体. 在 Windows 11 软件下载页面 上，选择 立即创建工具 ，然后 ...

This article applies if you’ve recently made changes to your device hardware and are trying to upgrade to Windows 11. Hardware changes might affect your upgrade eligibility, though you’ll need to take a few steps to see your updated eligibility in Settings.