07-28-2016 07:59 AM
Some of my .xlsx files denied to open. One of them showed an error message: File format not valid. Another file not so important how first one. Has somebody know Excel repair ways for my file? Many thanks for everyone…
07-28-2016 08:51 AM - edited 07-28-2016 08:53 AM
I have also had Excel issues in Windows 8 and 10 with Office 365 and know others have, too. An online repair has helped me. Go into the control panel click programs/uninstall and select Office 365...change...online repair. If you have another version of Office let us know.