Abacus0.9.13

Abacus is a spreadsheet for the X Window system built using Tcl/Tk. It supports many features common to popular spreadsheets and should be fairly easy to use. Currently it does graphics, cell editing, formats, formulas, loads and saves wk1/text/csv/Tinysheet formats, sorting, printing via Postscript and column/row manipulation. Additionally, it is programmable using a set of built-in Tcl commands so it should be fairly user-extensible.