Excel Spreadsheet Macro woes…….

We are in the process of planning a long overdue windows upgrade to Windows xp, with Win 2000 Office as our S.O.E.
We have many Excel 97 files and we assume many of these will have macro’s of one form or another.

Is there a product that can helpin the identification of these files and automate the conversion process from Excel 97 to Excel 2000?