Well, I see 329$ in the receipt. It is the price of the Ext.NET Pro license only. Without Premium Support Subscription.
Anyway, thank you for buying the license!
Here is the Ext.NET store.
http://www.ext.net/store/
Though, I am not sure we will be able to resolve this specific issue, because I still think the problem is not related to Ext.NET. There might be a problem on exporting XML to Excel. It is not related to Ext.NET. You show the data in a GridPanel using Ext.NET, you grab the data from that GridPanel and send it to the server using Ext.NET, but how you export this data to an Excel file, it is, generally speaking, outside of Ext.NET.
Thank you for sharing that and thank you for the kind words!
I posted the entire content of the log file in the post #27.
http://forums.ext.net/showthread.php...l=1#post125003