If you are trying to use this for Godot I've found the best way is to do it through the .obj and convert it to .glb in Blender, you will also have to rename your texture files or reassign the material textures in Blender, If the creator can give me a way to get in touch I can provide a .glb translated to English. Great asset and one of the only low poly tractors I could find so I appreciate the work.