Even though Office Timeline is a PowerPoint add-in, we've designed the installer so that Office Timeline installs itself as a typical Windows application. This makes it very easy for you to repair or uninstall Office Timeline.
Steps to Uninstall Office Timeline
Close all open instances of PowerPoint.
In Windows, navigate to Control Panel and Programs:
Windows Start > Control Panel > Programs.
Select Office Timeline from the list of installed applications and click Uninstall.