by-the-way i'm curious, why would you want to export from Bryce? it's noit much of a modeler, so what's there to export that wasn't outside in some file already?  terrains might be the only exception imho. For making models, I'd recommend Carrara, Nendo, Blender, Amapi etc... and those models will want to be rendered in Bryce, so imported. But what is it you want to export, and to what purpose?

just curious.   I don't use Bryce a whole lot, except occasionally for tutorials and to make tutorials with PD Particles as a companion