I am using Creator 6 and trying to convert some midi files to audio (wav or mp3, don't care which). I can open the midi and play it back (with sound) in the app, but when I go to the export function everything is grayed out. Does anyone have some basic steps for this? I thought the interface was supposed to be simple but maybe too simple for me... Thanks!

You can highlight the tracks and it should export just fine.

If that doesn't work try freezing the synth first.... this creates an audio wave and that should export just fine.

let us know

what are you using for output of your MIDI tracks?  if you're trying to use the MS GS Wavetable as output for your MIDI tracks then export will not work (thus the reason it's greyed out).  I suggest you instead insert TTS-1 as a softsynth and output everything to it.  then you can bounce tracks, export individual tracks or the entire project as normal.