The Native files Blender has a named and included:
It is mounted on the coordinate system (0,0,0) is in 1:1 size. I use Render LUXCore Render 2.4 Model is medium quality. Previews is made with LUXCore render FREE ADD-ON RENDER
P.S .: Priority - produced in Blender program builds -** Blender 2.83.9** I hope so that the exported files (.dae, .stl, .usdc, .obj and .fbx) is OK please tell me in private message if you have any problems.