Command Problem in Office - Microsoft Office may sometimes fail to open your files. When this occurs the Office applications may display an error that is confusing, indicating that the command wasn't recognized. Restarting the app won't always resolve the issue. If you're seeking a more effective solution, you can follow the troubleshooting instructions below. This error typically occurs when you attempt to edit and open the document that someone has granted access to? Try downloading the file onto your computer fixes the issue. Make a duplicate of the file that caused the error, and save it to your desktop. If you are able save it using an alternative format that Office supports. Next, use a different application for opening the file. then make few adjustments and save it once more. Utilize your Office applications to open the file, and then check whether this solution has helped solve the issue.
