Knobby has released a lot of the binary formats already (big thanks for that), but a few are still missing. Is it possible to provide the structure of material, mesh and rig files? The current tools only allow one way conversion and are generally very limited in functionality. I'm sure the community could add a lot more features and make them more convenient to use. Also please update the Github repository to release B, it still has an old version of the FBX converter. While you're at it, maybe add a license file, so we can make our own improved versions.