A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Hi ManonBourbonnais,
Please try the following steps to see if you can activate Office 2016 for Mac:
1. Open Finder>Applications, find Microsoft Office 2016 app such as Microsoft PowerPoint. Double-clicking on an Microsoft app to open it.
2. The What's New window opens automatically, click Get Started > Sign in. and then enter your Office 365 email address and password.
3. If there is no What's New window, you may need to activate from within the Office app. On the top menu, click PowerPoint ->Activate Office > Sign in.
You can read this article to learn more about activating Office 2016: Activate Office 2016 for Mac.
And it seems you have Office 2011 and Office 2016 both installed on your Mac, if you want to open an Office file with Office 2016 for Mac by default in the future, please try right-clicking on the file->Open with->More apps, in the Chooses Application dialog box, select an Office 2016 app and make sure Always Open With is checked.
Regards,
Joanne