Anyone know how to import a FDMS3 DAT file

I have an old Fostext VF80ex … and would like to know if anyone knows how to import a FDMS3 DAT file into Audacity

The BIG problem is that FDMS-3 is not a file format, it’s a closed source proprietary file system. In order to get meaningful data from a file system, the file system needs to be mounted. When properly mounted you should find a series of directories, one per project, containing WAV files.
More information here: http://www.trapdoor.org/prj_fdmsfs.php