Has anyone had any luck with this conversion tool that MSFT offers?

Long story short: I created a number of XL 2007 files, had to uninstall
Office 2007 from my machine and revert back to Office 2003.

So I want to open the XL 07 files and convert them to XL 03 format. The
conversion tool though isn't working. I get a message saying XL 03 doesn't
recognize the file format.

Wondering if anyone out there has had a similar problem.

Thanks,

Dave
--
Brevity is the soul of wit.