Opening Mac PT files in PC

[Animal]

I did a project with somebody in PT5.2.1 on Mac OS9, saved as 24 bit AIFFs. Transfered the files to his hard drive at the end of the project. Then he opened them on his PC (Dell, I think) using whatever the most recent version of PT is for PC, and when he brought the files back to me to do some additional mixing, they were totally screwed up and wouldn't open no matter what I did. The audio files, instead of being AIFFs, just had a "PC" icon and no suffix. I tried everything I could think of...converting, renaming, opeing PT first and then trying to open the session...etc. PT just refused to recognize the file format. Are they somehow unrecoverable???

Oh man. Any help would be great.

[Matt Whritenour]

have him try doing a save session copy as, and make sure the enforce pc/mac compatability
box is checked and maybe instead of using aiff have him save the files as .wav