How to convert .chk files into several types of file?

I have a .chk file and my USB consists of a lot of files like .psd, .jpg, .doc and .ppt. How can I convert them back to their original format?

optimo2009-11-01T20:51:21Z

Favorite Answer

If you have a .CHK file, your best bet is to rename it to what you *think* it was, or just delete it. This is generated when Windows checks your USB drive for errors and it finds a file that may or may not be destroyed.

If you can, change the file extension. For example, change image001.chk to image001.jpg if you think it was an image. If this doesn't work, the file might just be trash and you should delete it.