help req with *.syx files

I have an MPS+Orch keyboard, used along with a Yamaha QY-700 sequencer.Recently I got hold of some MPS *.syx files,which I would like to dump to my synth.THE PROBLEM,QY-700
dosn't support 'syx' files. Also, right now I do not have access to a PC Midi card.

---HELP!---