Gui_Download

Hi Gurus,

I have a small question, I have an error table it_error_tab and it has following fields:

MAterial no. Price Quantity.

and now I want this file to get download on the local system in the form of excel sheet and for this I have used gui_download, and its working fine too. now the only concern is when I look at that excel sheet, there is no column heading so it is kind of confusing. So can you please tell how can I put the column heading the downloaded excel sheet .

Thanks

Rajeev