SAP --> Excel -- Making the header in excel bold

Hi,

I am populating excel sheet using GUI_DOWNLOAD. I have used con_tab & con_cret for forming the internal table (itab_table) to be sent to GUI_DOWNLOAD. I am getting the excel file as required with all the data, with headers and spaces.

Now, is there any way in which we can make the header line of excel sheet (i.e., say, the first line of itab_table) <b>bold</b> in appearance??

Advance Thanks

Aadarsh<b></b>