Hi Susan,

If you want to select the rows where ABC is found in the Comments 2 field, use the FIND formula Steve indicated in a filter where the result is >0. If you want to select rows that don't have ABC in the Comments 2 field, use the same FIND formula but =0.

Filter 'Comments with ABC': FIND("ABC", {Comments 2}, 1) >0
Filter 'Comments without ABC': FIND("ABC", {Comments 2}, 1) =0