The "Review" tab in PowerPoint includes features like Track Changes and Comments for collaborative editing.

The Find and Replace feature in PowerPoint can be used to quickly locate and change specific words or phrases throughout a presentation.

The Spelling feature in PowerPoint automatically checks for and suggests corrections to spelling errors in the presentation.

Comments in PowerPoint can only be added by the original creator of the presentation and cannot be edited by others.

The "Reviewing Pane" in PowerPoint provides a summary of all changes and comments made during the collaboration process.

The collaboration features in PowerPoint are only available when working online, and not in the desktop version of the application.