0
Just some things to try : Not talking about specific model, but obj in general. Mtl file is a text file (you can open it in text editor) it just tels 3d program that obj file is associated with some texture file (.jpg .png or whatever) obj, mtl and the texture file (.jpg, .png etc.) Has to be in a same folder. If that doesnt help you can make a material in blender, apply it to object (obj) and add texture file to the color (diffuse, albedo) node of material. And make sure blenders viewport is set to display textures.
