Calculator by Less-Mess - Version 4.50 Calculator that produces a virtual proof tape. Entries can be annotated, edited, deleted, inserted and rows can be moved. Files can be named, saved, copied, deleted, printed and inserted into other programs + full equation and function capabilities. Sub total, data and comment rows can be added anywhere at any time. You can create an unlimited number of special tape files that can be saved, named, renamed, opened, edited, copied anddeleted.