Eric/Kai
We recently built a sample export to excel component as part of Design Studio 1.2 SDK Beta (supports both Excel and CSV)
http://www.visualbis.com/blogs/design-studio/2013/09/17/sap-design-studio-export-to-excel-addon/
It's not available for public release as it's still in Beta, but soon you'll be having some exciting options including a native component from SAP.
Regards
Jay