

You can only send with “review-only” in Word, not in Excel, PowerPoint or OneNote (I hope that will change).You can protect Word and Excel files in SharePoint and OneDrive.In the online apps you can only protect Word and Excel, but not PowerPoint.(You can also use other ways of protection, but that is out-of-scope for now)

In the desktop apps you can protect Word, Excel and PowerPoint documents against overwriting.You can not protect OneNote documents, in desktop nor online nor that half-baked OneNote for Windows 10.

