There are sixteen formats known:
- 0 – MDL (model format);
- 1 – ANM (model animation);
- 2 – ROM (room parameters, always two integers and floats);
- 3 – NOD (room background palette);
- 4 – IMG (room background image);
- 5 – ZZZ (depth buffer for room background);
- 6 – GRA (sprites);
- 7 – QGM (message format);
- 8 – FTR (some room data);
- 9 – WAV (effects and music);
- 10 – RGD (region data);
- 11 – MOV (intro and cutscenes);
- 12 – QGF (font files);
- 13 – STR (some room data);
- 14 – AUD (speech audio, still in WAV format);
- 15 – SNC (lipsync data to accompany speech).
I’ll try to document all these formats (except for AUD, MOV and WAV).