Excel 2003 "file error: data may have been lost" after applying SP3

I have been exporting data from Infomaker 9 to Excel format without any issue until applying Service Pack 3 for Office 2003. I don't know what went wrong with same functionality after update, now after exporting data from Infomaker 9 to Excel format when i try top open the file Excel 2003 then i get an error message saying "File error: data may have been lost" If i click on "OK" then file does opens but i want to get rid of that error as it wasn't coming up before.

There's some issue going on with Service Pack 3 update for Office 2003, many people have reported similar issue. I think we will need further update from Microsoft to fix this. Until then you can get rid of the error message by uninstalling Excel and reinstalling it using office 2003 sp2 CD that you might have used for its installation.