The mailing list has already talked about this, but I don't know
that particular file extensions were settled on. I don't wish
to muddy the waters, but if this has not already been settled ...
May I propose ...
UNIX DOS (8.3) compression
------------------------------------------------------------------
filename.vrml FILENAME.WRL (none)
filename.wrl (none)
filename.vrml.gz FILENAME.WGZ gnuzip
filename.wrl.gz gnuzip
filename.wgz gnuzip
filename.vrml.Z FILENAME.WRZ unix compress
filename.wrl.Z unix compress
filename.wrZ unix compress
--linas