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 ...

Excel remains popular in business for its familiar interface, data tools, and broad feature set. Open-source alternatives like LibreOffice Calc and Gnumeric offer compatibility with Excel files.

Can it open password protected open office files? I am installing and experimenting with replacing open office with Abiword and gnumeric, as they hopefully will be smaller and quicker to load. Our ...