I have created a large Excel app for a client. It's got 26 screens, over
10,000 lines of VBA code, etc. I wrote it using Excel 2007, working in .xlsm
format. I took care to use only functions that are available in Excel 2003,
never to use more than 3 conditional-formatting conditions, etc.

When I save the workbook in .xls format for use in Excel 2003, the
compatibility checker says I have a "minor loss in fidelity" for 11
occurrences of formatting. It offers no help for finding where they are.

How can I find the places that are triggering the warning?

Thank you!