Learn how to download and install Microsoft 365 apps like Word, Excel, Teams, and PowerPoint on your PC or Mac. Follow the instructions in the browser and sign in with your Microsoft 365 account to activate the apps.

Learn how to use VLOOKUP, HLOOKUP, INDEX and MATCH to look up values in Excel tables. See examples, tips and limitations of each function, and how to use the new XLOOKUP and XMATCH functions.

Learn how to download and install Microsoft 365 or Office 2019, 2016, or 2013 on your PC or Mac. Find out how to activate Office, troubleshoot issues, and switch languages or bit versions.

Learn how to view and delete your Microsoft Edge browsing history stored on your device, across synced devices, and in the cloud. You can also clear Internet Explorer browsing data using Microsoft Edge if your organization has turned on Internet Explorer mode.

Learn how to use the XLOOKUP function to find things in a table or range by row, with examples and syntax. Compare XLOOKUP with VLOOKUP, HLOOKUP, and XMATCH functions.

Learn how to access SharePoint, a browser-based app for online collaboration and document management, through your web browser. Find out how to check your subscription, troubleshoot issues, and get training for SharePoint.

Learn different ways to remove apps and programs from your Windows 10 or 11 device. Find tips for troubleshooting, repairing, and protecting your system from malware.

Learn how to redeem a Microsoft gift card, Xbox download code or token, Office product key, or Windows activation code to your Microsoft account. Find troubleshooting tips and contact support if you need help.

Learn how to enable, disable, or remove add-ins that enhance Word's features and functionality. Find out how to change add-in settings, access add-in details, and troubleshoot common issues.

如果这是你第一次安装 Microsoft 365，则可能需要先执行一些设置步骤。展开下面的 “了解详细信息”部分。 但是如果是重新安装 Microsoft 365，且已兑换了产品密钥并拥有与 Microsoft 365 相关联的帐户，请转到“登录并安装 Office”的部分。