File Type not Supported - Mathcad Prime 11.0.1.0 (crashed file?)

Your file is damaged beyond repair. 
I suggest you recreate it from your last backup.

Success!
Luc

Hi ​@Tomm1,

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution. It will help other members who may have the same question.
Of course, if you have more to share on your issue, please pursue the conversation.

Thanks,
Anurag