EXS 24 Logic Sampler Users Group

Sorry I need a little more help here.  I downloaded some SoundFonts 
which seem to come in .dmf files.  I dragged them to the Sampler 
Instrument folder as instructed in a previous post but it didn't work.  
I then tried using the convert to EXS freewhere that I got from this 
group but still no luck.

I think this is a MAC issue.

Any help?

Thanks

DJ Freak