Bad news here – there is no way to tell.
Some items on an order might take one detailed line, other 15 (for comments)
Recommend writing it as Page 1 of xx, Page 2 of xx
then use cpysplf to copy to a 132 character database file. update the rows by replacine the xx with the highest page number and writing all rows out again.
You cannot do the copies while the file(s) are open. Either a second program or usropn files are necessary.