COMFIE

COMFIE (COMpare Formulas In Excel files) compares the formulas of all sheets that have the same name in both Excel files and reports the differences.

Changes in just one or a few formulas in an Excel file can cause many displayed values to change. That makes it difficult to find out what are the actual differences between two Excel files. This program is intended to help with that. The Windows version is at: http://download.cnet.com/Comfie/3000-2077_4-76351205.html
What's new in this version:
Mac version of COMFIE