I ordered their planet file solararch. All Now works.

Another question. How to edit .mat files? I opened it with Utf editor, but the textures are not there. Maybe it should open the program Milkshape 3d? Also I opened .sph file with Utf editor. There I learned to change only the radius. However, there was a line planet_side1, planet_side2 and so on. What to edit if I want to create a planet with your sph file?