A cloud-based task management app from Microsoft that helps users organize and manage daily tasks across devices.
If you are unable to uninstall the Office apps using the normal process, the Office installation may be corrupt, have you tried performing a full online repair of the Office installation first, then try uninstalling the Office apps again.
Open the Settings App (gear icon on your Start Menu)
Go to Apps - Installed Apps, then scroll down to find Microsoft Office
Select that and choose Modify - Online Repair