I guess it depends whether anyone's published specs for the file format (DNet maybe?) or you feel like trying to reverse-engineer them. Either way I suspect some amount of coding would be necessary.
Well, it was just a thought. I find some of the sounds to my liking, they sound amazingly retro but cool at the same time. Notice for example the Helix firing sound. It was actually toned down for the final release because it might have been too attention-grabbing.
As for the file format, I think it's very much like the D1 one (or at least I suspect so), so D1 software should be sufficient to mess around with the contents. But as said before, DTX for example requires all files to be "legit D1", which may or may not be a simple flag issue.