StarOffice

StarOffice screenshots

StarOffice supports the OpenOffice.org XML file format
Spreadsheet window
StarOffice 8.0 : Spreadsheet window

Alternative downloads

Ashampoo Office 2010
An office suite: a word processor, a spreadsheet and a presentation program.
10.0.584
SSuite Accel Spreadsheet
A free professional spreadsheet application.
8.32.1
FREE
Spreadsheet Professional
Excel Addin that works with all versions of Excel.
5.01