What is LibreOffice - Calc?
LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.org Calc, professional data miners and number crunchers will appreciate its comprehensive range of advanced functions.
Advanced DataPilot technology makes it easy to pull-in raw data from corporate databases, and then cross-tabulate, summarise, and convert it into meaningful information.
LibreOffice - Calc Screenshots
LibreOffice - Calc Features
LibreOffice - Calc information