You cannot edit .cct files with a text editor. You must use tools designed for Adobe Director.
It defines how a piece of furniture behaves (e.g., Is it seatable? Can you walk on it? Can you put items on it? Is it a door?). hh_furni_classes.cct
It maps Class IDs defined in external_variables.txt to specific Lingo scripts inside the .cct file. You cannot edit