(defun auto-new-line()
  (interactive)
  (move-to-column 0)
  (insert ?n)        ;; This, along with the previous line moves to column 0 in the first line and inserts a beginning new line to separate the part numbers with their descriptions from the other part number/description combinations.
  (move-to-column 18) ;; In this case the part numbers are 18 characters wide.
  (insert ?n)
  (next-line)
  (auto-new-line())