Colist: columnar listing program. local expert: Ralph Gorin (REG). Colist is a program that takes a long, narrow listing and lists the columns so that there are several columns to the page. example: 1 2 3 ... would be arranged by colist as follows: 1 41 81 121 ... 2 42 82 122 ... ... 40 80 120 160 ... to invoke colist, type R COLIST.