Attached is a demo project that constructs a Workbook based on the data of RadGridView and exports it to an xlsx file. Please note that the demo cannot transfer automatically the appearance information (colors, gradients etc.) from RadGridView to the new Workbook, since the grid itself does not expose such information at run time. However, the project allows you to specify the IFill values of header, data and group header rows, so you will be able to apply formatting to your data manually.
Additionally, the demo is for WPF, but the code-base of the RadControls for WPF and Silverlight suites is the same so little to no change should be required in order to use the code in a Silverlight project.
I hope you will find it helpful. Let me know if you have further queries. I will do my best to assist you.
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for SILVERLIGHT.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely.
Sign up for Free application insights >>