Loading asset from system path

Hello. I need to create model viewer, which will receive model name from command line and load it. Model format is .obj. I tried this:

  private const string ModelPath = "c:\\M9.obj";
 
     void Start () {
 
         var modelBundle = AssetBundle.CreateFromFile(ModelPath);
         if(modelBundle != null)
         {
             GameObject model = Instantiate(modelBundle.mainAsset) as GameObject;
             model.transform.localPosition = new Vector3(0, 0, 0);   
         }
     }

But with every sample model I received a same error: "Error while reading AssetBundle header!". When was I trying to load via WWW with "file:///" prefix, model text has loaded successfully, but when I call "CreateFromMemory", there are same error returns.

What I am doing wrong?