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.

Use a Store add-in to add new tools or features to Office. Get an Office add-in. Select Insert > Store. In Outlook, select Home > Store. Browse the list of Office Add-ins or search for one in the search box. Select an add-in to learn more about it. Select Add or Buy for the add-in you want.

To learn how to insert and use Office Add-ins within Access web apps, see the following articles: Add an Office Add-in to an Access web app

If you're looking for Help on specific Excel Add-ins, such as Solver or Inquire, see Help for Excel for Windows add-ins. If you're looking for additional help with Excel add-ins using the COM Add-ins dialog box, see Add or remove add-ins in Excel. Get a Microsoft 365 Add-in for Excel.

Install, manage, or uninstall apps in Microsoft Edge. With Microsoft Edge, you can install and manage applications from your favorite web sites onto your devices for fast access. Use the edge://apps page to see your installed applications and manage app permissions.

Add-ins for Outlook for Mac are programs or utilities that help you automate tasks or add new features when you view or create messages. Microsoft has partnered with leading companies to build add-ins that help you get things done right from your inbox.

When you select the Import Settings option during setup, the web add-in counterparts of your existing COM add-ins in classic Outlook for Windows are installed in the new client. The following table lists the applicable COM add-ins and their web add-in counterparts.

You do NOT need the related app installed. For example, to use Evernote you do NOT need to have the Evernote app. Please see "What are Add-Ins and how do they work?" in this FAQ for a more detailed walkthrough.

Add-ins provide optional commands and features for Microsoft Excel. By default, add-ins are not immediately available in Excel, so you must first install and (in some cases) activate these add-ins so that you can use them. Some add-ins are built in to Excel, such as Solver and the Analysis ToolPak.

If you don’t see Add from Office Store as an option on the Outlook Web App options page under Apps > Installed apps > , you may be able to install Apps for Outlook from a URL or file location. For more information, contact your service provider.