We are currently working on PivotTable as well as you could use the GridView but I guess this is not what you are after. I am not aware of current plans for Excel like control in the near feature but we will definitely release one in future (I guess a prototype may be available for Q1).
I would rather compose a page with the controls we already have and print it instead if I am using Silverlight. You could also consider using the Telerik Reporting.
the Telerik team
Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get now >>