A Blender Import and Export plugin based on James Pezold's Monvert bin converter: https://github.com/jpez1432/Monvert
Thanks James for making that open-source! I could not have made this without your code.
To install, just drag that zip onto your add-ins window in Blender: Edit >> Preferences >> Add-ons
The readme is long, but have a look as it explains basic usage and some potential troubleshooting should the need arise.
I felt it was finally ready for release when I successfully got this beast into the game (over 18k verts and 16k faces!):

Looking forward to seeing what the limits are of Fila's new updates. The Hummer in the screenshot above runs just fine in game. So, I'm guessing quite a bit higher!
Enjoy!