text: If you don't know the extension you are out of luck. You can search for extensions at many sites including http://filext.com/alphalist.php?extstart=%5EA\n\nIf you don't currently see file extensions go to control panel/folder options. Under view/advanced settings remove the check mark from "hide extensions for known file types". I would recommend that everyone do this. You can download what looks like x.jpg and find out that it is really x.jpg.exe.