How to open the downloaded 3d model files?

I’m new to this… I can view the 3d model online through the web application, but when I select export and download the zip file, I get a file containing several .jpg files, an .mtl file and a .obj file. When I open the .obj file in Paint 3d, it loads the shape, but none of the textures. What’s the easiest way to view the full model with the textures applied?

You could try Rhino or Blender. Paint 3D is really meant for small 3D printer models.