Hi, I have SSRS 2008 R2 10.50.1753 on SharePoint 2010 integrated mode. I have a report with Matrix on it and matrix has few GROUP BY columns/rows. Report display correct group by and data on IE but when it extracts to excel, it generate extra GROUPING colmuns into it (for two group by columns in matrix, it extract two group by correctly and extract same two columns as duplicate next to it). Any idea why SSRS 2008 R2 doing 'duplicate' or 'repeating' column grouping in excel format on SharePoint integrated mode? Thanks.