Excel like function evaluator

From: Ed Dressel (none_at_none.com)
Date: 03/18/05 

Date: Fri, 18 Mar 2005 07:16:04 -0800

I need a component that will allow me to evaulate Excel like functions. Some
examples would be (where the variables are replaced with real values):

=if(A>B, C, D) // and nested
= (A*B)-C+D

Thanks in advanced.