Zhann? If you go into Bryce and click on file, import object, it accepts prj files... If You click on the file type frop down menu, it will give a list of what it accepts... mine shows *.3ds, *.prj, *.t3d, *.3mf, *.b3d, *.dxf, *.x, *.lwo, *.lws, *.pgm, *.hf, *.cob, *.scn, *.ddf, *.dem, *.vsa, *.wrl, *.obj, *.elev, and *.nff hope this gives ya hope at least