🚀 go-pugleaf

When I try to open the file on the PC with FM 7.0, it doesn't appear to recognize it as a FM file, and opens the file conversion dialog box (asks me to indicate which application used to create the file so it can convert it..) 

This project was done in '93, and I'm pretty sure that was when the mac OS was not as friendly with PC. Plus, I don't really know what these files are (*.fm, *.book, etc..) A co-worker SWEARS they are FM files, but was not involved with the project enough to know the details. 
I cannot tell when looking at the files from the mac - the files are not associated with an application, they are a "blank page". This is probably because FM is no longer on the mac. Also, to make matters more complicated, I think that the files were originally saved onto a netware server, then later restored to the mac via backup tape. What a mess. Thank you for trying to help me! 

Robin