I have an SSRS report that has several row groups ('Account No.', 'name', 'MAR Type') as well as row visibility toggled by the value 'Bill Date'. When I export the report to Excel and try to filter on the grouped columns, the only option that shows up is '(Blanks)' I have to make all the rows visible for filtering to work.
Is there any way to get the column values for the grouped rows to show to show up under filtering?