To load up and view the models natively, use Truespace 7.6 Modelside 2.1 http://www.flat2d.com/truespace.html
To load the models into blender, you can use the above version of truespace to SaveAs the scene as a '.wrl' file. These can be imported in blender (note that the importer was moved to an addon called the ""Web3d x3d/vrml2 format" in blender 4.x). You will need to fix the alpha values on the imported materials, and some materials will not import correctly. You can past the following code into the blender browser to fix the alpha values, but you will probably need to reconstruct at least some of the materials.
Code: Select all
import bpy
for mat in bpy.data.materials:
if not mat.use_nodes: continue
for n in mat.node_tree.nodes:
if n.type == 'BSDF_PRINCIPLED':
n.inputs["Alpha"].default_value = 1