See Mr. McGimpsey's website for an explanation:

http://www.mcgimpsey.com/excel/pennyoff.html

Does that help?
***********
Regards,
Ron

XL2002, WinXP


"alyn21" wrote:

I have Windows XP on this computer. When I try to add a group of
numbers in excel the final result is not accurate. It is off by between
..01 to .02.
This happens in some cases and in others it does not. It is happening
often enough to be a problem.
Any information that can help me with this problem would be greatly
appreciated as it is slowing down my productivity since I have to check
every group of numbers I add to make sure it is accurate.