I know little to nothing about AutoLisp programing. I have a set of block drawings (234 of them) I got from a 3rd party. These are simple drawings and have been produced with varying layers. What I want is a Lisp (or script?) routine that will 1)open each drawing in a specific folder; 2)change everything in that drawing to layer 0; 3)Zoom Extents; 4)save the drawing (the original name will be fine); and 4)close the drawing. Do any of you know where I might find a routine of this kind or would one of you Lisp gurus be interested in writing one?