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. Explore your options and settings when you install add-ins.

Select Start > Settings > Apps > Apps & features. Under Installing apps , select one of the available options. To stop seeing app recommendations, select either Allow apps from anywhere or Turn off app recommendations (options vary by Windows version).

For guidance on how to locate the Apps button to access add-ins while reading or composing a mail item, see Use an add-in in Outlook. In the Apps page, search for the add-in you want from the available list. Alternatively, if you're after a specific add-in, enter its name in the search box.

You can use the new web Office Add-ins in most of the Office 2016, Office 2019, and Microsoft 365 applications. Select a heading below to open it and see the detailed instructions.

If you don’t want to use an add-in in Outlook 2013 or Outlook 2016 for Windows, you can disable it so it won’t show up in your messages. In Outlook, click File > Manage Add-ins. Tip: This opens Outlook on the web. Under Manage add-ins, in the Turned on column, uncheck the box for the add-in you want to turn off.

Office add-ins can help you personalize your documents or speed up the way you access information on the web. For example, with an add-in you could look up items on Wikipedia or add an online map to your document without having to leave Excel.

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.

Download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac. Set up Office apps and email on a mobile device. Small business help and learning. Learn how to download and install apps you need from your Microsoft 365 business subscription.

You can directly install add-ins from this page or select More Add-ins to explore. In the Office Add-ins box, click Store tab. Browse for the add-in you want. You can browse the whole store by selecting All or by a specific category such as Productivity.

You can install the web version of Outlook—either Outlook on the web or Outlook.com—as a progressive web app in the new Microsoft Edge and Google Chrome.