I\'m using SSRS for reporting and executing a stored procedure to generate the data for my reports
DECLARE @return_value int EXEC @return_value = [dbo].[
Either use a User Defined Table
Or you can use CSV by defining your own CSV function as per This Post.
I'd probably recommend the second method, as your stored proc is already written in the correct format and you'll find it handy later on if you need to do this down the road.
Cheers!