Text Block Writer is described by its author as
…a virtual index card program for writers
Text Block Writer works similar to the way one would write notes on one or several pieces of paper. By using Text Block Writer one can organize the notes in pages and columns cleanly. It is also possible to export all notes to the standard *.rtf format or keep using the program’s own *.tbwml format which in itself is simple *.xml.
Each note is saved in a square or rectangular block, within a page. Each page contains at least three (by default but can