Gnumeric is a lightweight spreadsheet program that is fast and feature complete. Gnumeric can create a calendar or perform any other numbers-based task. (click image to enlarge) Much like its chief ...

The ability to import files created by commercial packages is crucial for a non-mainstream spreadsheet (such as Gnumeric) so Gnumeric imports Microsoft Excel, Lotus 1-2-3, XBase, and even the Psion ...