In Word 2016, Excel 2016, or PowerPoint 2016, click Insert > My Add-ins. In Project 2016, click Project > My Add-ins. Then click Refresh to update the list in the Office Add-ins dialog. To learn how to insert and use Office Add-ins within Access web apps, see the following articles:

Require Application Add-ins to be signed by Trusted Publisher Check this box to have the Trust Center check that the add-in uses a publisher's trusted signature. If the publisher's signature hasn’t been trusted, the Microsoft 365 program doesn’t load the add-in, and the Trust Bar displays a notification that the add-in has been disabled. ...

As part of the startup process, Microsoft Word can load Component Object Model (COM) add-ins. A COM add-in is a supplemental program that extends the capabilities of Microsoft Word by adding custom commands and specialized features. NOTE: A Microsoft program and a third-party program both can install COM add-ins.

For Windows 10.The Windows DVD Player app is available free for a limited time for people upgrading to Windows 10 from Windows 7 Home Premium, Windows 7 Professional, Windows 7 Ultimate, Windows 8, or Windows 8.1 with Windows Media Center.

In the Add-Ins available box, select the Solver Add-In check box, and then click OK. If Solver Add-in is not listed in the Add-Ins available box, click Browse to locate the add-in. If you get a prompt that the Solver add-in is not currently installed on your computer, click Yes in the dialog box to install it.

Windows Media Player plug-ins. Desktop themes and wallpapers Visualizations are colors, shapes, and patterns that move to the music in Windows Media Player Now Playing mode. Plug-ins or add-ons add functionality—such as audio effects or DVD capability—to Windows Media Player.

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. Getting add-ins. Select See more items (…) in the toolbar and select Get Add-ins.

Add-ins have access only to the data in the email message that you're working in. All add-ins are validated by Microsoft, including those that you install from the Office Store. For more information, see the privacy statement and the terms and conditions section in the add-in’s consent form.

Important: New name for apps for Office - Office Add-ins. We are currently updating our products, documentation, samples, and other resources to reflect the platform name change from "apps for Office and SharePoint" to "Office and SharePoint Add-ins". We made this change to better distinguish the extension platform from Office apps (applications).

Select My sign-ins or select the Review recent activity link from the My sign-ins block. Expand and review each of the sign-in items, making sure that you recognize each one. If you find a sign-in item that doesn't look familiar, change your password to protect the account in case it's compromised.