Where are my custom templates? - Microsoft Support
Learn how to find your custom templates created with earlier versions of Office and access a custom templates location.
Personalized offers and discounts based on how you use Office
When you use Microsoft Office apps and features, you might occasionally receive notifications, emails, or other messages from Microsoft offering you things like the opportunity to try an updated version of a Microsoft app, or a new Office feature, or a discount on a Microsoft product.
Use the Morph transition in PowerPoint - Microsoft Support
Learn about using the Morph transition in PowerPoint to automatically create animations, movements, and effects on pictures, images, and other characters in your presentation.
Insert a video from YouTube or another site - Microsoft Support
In PowerPoint for Microsoft 365, PowerPoint 2021, or PowerPoint 2019, you can insert an online video from YouTube or Vimeo on a slide.
Change the author name for documents, presentations, or …
To see the Author property for a document or workbook, click File > Info, and then look for Author under Related People on the right. Important: This procedure changes the related settings for all Office apps, regardless of which app you are using when you change them. Click File > Options.
Add or remove a digital signature for Microsoft 365 files
To learn about digital signatures (also known as digital ID), what they can be used for, and how to them in Word, Excel, and PowerPoint, see All about digital signatures. In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Signature Line in the Text group.