Miscellaneous topics that do not fit into specific categories.
Hi Thomas,
Please make sure that correct Microsoft office is installed and its activated in order to use the Office applications.
For now, you can uninstall the app then go to account.microsoft.com/services and install the Office from there. Once done, sign in your account where the Office license tied in order to activate the Office then you should be able to open documents and edit it without being prompted to activate it.