Use an add-in while composing a message. Create a new message or reply to an existing one. From the ribbon, select the Message tab, then choose the add-in you want to use. If the add-in doesn’t appear in the ribbon, select Apps to view your installed add-ins.

Click the drop-down menu on any email message in Outlook.com, and then select Get Add-ins or select More apps in the app bar and select Add apps. On the Add-ins for Outlook page, select the add-in. For free add-ins, click Add .

In Outlook, click File > Manage Add-ins. In Outlook Web App, click Settings > Manage add-ins. Under Manage add-ins, in the Turned on column, select the check box for the add-in you want to enable. Learn how to enable an app for Outlook.

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

Access the in-app FAQs in Outlook for iOS or Android. Easily find the info you need by searching the comprehensive in-app FAQ!

Go to Settings > Apps > Apps & features to change whether you're shown app recommendations when trying to install apps from outside the Store.

Use the My Office Add-ins and SharePoint page to check your add-in’s status and retrieve hidden add-ins. In Word 2016, Excel 2016, or PowerPoint 2016 click Home > My Add-ins > More Add-ins . In Project 2016, click Project > My Add-ins .

了解如何加入俱乐部，以便你可以聊天、玩游戏、共享内容以及加入其他玩家的群。. 同时了解如何退出俱乐部。.

Lock or unlock specific areas of a protected worksheet. You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define.

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