Link of the Day
Zamzar. Converts files for free from the crap you can't open to the stuff you can, without having to download some new program. Upload your crap file to their site, and they will email a shiny openable version to you. Probably - not sure - you agree to have your email address sent all over the place, so give them a spare one you only use for junk like that.
I just found it, used it. It worked great.