Pity. If you did, you could use BIAB for what you want to do. You are aware that this forum is for: "Other PG Music Programs"?
What you want to do can be accomplished by various means, but were I you, I would seriously consider purchasing BIAB. There are several forum members who use BIAB live. It would allow you to load a MIDI file and play it through a good synth.
BIAB comes with a 30-day money-back guarantee, BTW.
Regards,
Bob