First of all I am not GOD.  Though I did an incredible fix here, it is just a cosmetic one but I was able to save the door.  It was a double  wood garage door and would have costs multiple thousands to replace.

Not many would have been able to make this repair.

All the rotten wood had to be removed first.  Trying to do it without the door falling apart was the trick. Then supporting the doo from the inside, because4 the door is moving up and dpwn each day.   I call this a creative repair and I saved the door.