You say that you are generating data, but there is a known limit to Excel that it doesn't support more than 65,535 rows. So are you exporting data or just generating it to print to a report? If exporting, there is nothing you can do. Excel has this limit built into the spreadsheet.

Hmmm.... Crystal shouldn't have this limitation. From looking at the error message, it looks like its the group levels that have this limitation (I didn't realize that). Don't know what to do here? I wonder it you break it into two subreports and then put both subreports on the same main report. That way it looks like one large report? Don't know....