File no good. Invalid Argument!!!

How can I be working on a file saved to my hard drive on a Friday with no problems come in on Monday now the same file will not open? "Invalid Argument"

File is a 139MB vehicle wrap with rasters and vectors.

Tried the backup - no go!

Tried copying the file to another temp directory on my hard drive - no go

Tried opening the file with X7.1 - no go (opens but just as a blank page)

Tried opening on another pc with X4 - no go

Tried renaming it _no go!

Tried shutting down for 5min - no go!

I have a batch file that "Kills" all CD processes and also deletes all temp files and I run this batch file after every CD crash.