Does anybody know if there is a chance of recovering data from a *-flat.vmdk file from (ESXi 6 /VMFS-5) which didn't finish coping? Unfortunately backup is not available. The image file was thick provisioned and the size of incomplete file is bigger than the content of the image. So what I'm missing is empty space maybe.
Try mounting it on a linux box and see. Something like
You may have to force the offset etc but I've had good results doing this in the past.