Five years ago, I copied a bunch of files onto a Sony thumb drive. About a year later, for some reason, 75% of them converted to a .VEM file extension. I was never able to open them even though the thumb drive had an "expander" file. I have talked to so many people over the years and read so many posts but nothing ever worked. Then, as a result of one of the posts I read here, I stuck my thumb drive into my computer, opened up its file, dragged one of the .VEM "corrupted" files onto my computers desktop and, voila, it converted to a .doc and it opened Five years of frustration has finally been put to rest. I immediately dragged all of my other .VEM corrupted files onto my desktop and, after confirming they all had the proper .doc extension again, saved them onto a portable hard drive and am now throwing out my sony thumb drive.