Hi Bigboss,
When exporting to Microsoft EXCEL, excel will add an extra row for each group, if we use the “=Sun(fields!column.value)” in the details row, then the extra row will display the total of this group, if we use the fields!column.value in the details row, then
the extra row will display the first value of this group.

Hope this helps.
Regards,
Charlie Liao
Charlie Liao
TechNet Community Support
