Did you get this straightned out? Spectral had a program that did what you want to do. I never had it, nor do I know what the computer requirements were/are. It may have been calle AudioFiler (somebody is now using that name for an MP3 program). They died as 98 came into being. What I had was their last DAW program, StudioTracks 3.0. It permitted you to export as WAV. However, it requires that you have AudioEngine or Prisma hardware.
Regards,
Mike