QueenKirsty 0 Newbie Poster

I have built a data viewer in C#.Net for the accounts department that allows them to dig through cubes of financial data and export sets to excel but my boss has asked for the ability to create and manipulate pivot tables (based on this data) within the application rather than having to export to Excel and do it there.

Does anyone know of a good add-in that will provide this graphical functionality?