A search of google leads to
http://xldataanalyst.com/Basic/

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Regards,

Tushar Mehta
www.tushar-mehta.com
Excel, PowerPoint, and VBA add-ins, tutorials
Custom MS Office productivity solutions

In article ,
says...
For my marketing college class I had to buy a textbook that comes with Excel
addon software. However, the software is Windows only. I own a Mac with
office, Excel included. Does anyone know if there if a copy of the software
for Macs?

Textbook: Basic Marketing Research: Using Microsoft Excel Data Analysis
Softwa XL Data Analyst
OS: Mac OS X 10.4.4
Office: Mac office 2004 Teacher/Student Edition

I have also contacted the publisher of the book and they said they could not
find a Mac version of the addon.