Posted 29 August 2010 - 11:00 PM
I know this isnt exactly what you are looking for but my quickest answer is this:
Download OpenOffice Calc, it is an MS Excel replacement and it does NOT require the .NET framework.
As for checking whether or not you have it, look at your add/remove programs list and windows components. Also I am not sure if Framework 3 is compatible all the way back to 98SE.
AMD Phenom II X6 2.8ghz
8GB DDR3 RAM
XFX ATI Radeon HD6850 1 GB DDR5, 26" Widescreen HDMI
500GB + 80GB HDD
Windows 7 Pro, Mozilla Firefox, AutoCAD 2011, Solidworks 2009