To write test Results into a column in excel

Hi,

I am getting test data from an excel file and wish to write the result for a particular test into a specific column called "CardNumber" on the same row (in the same excel file) . I'm using DDT.ExcelDriver to loop through the data rows.

The value of the CardNumber is extracted from:

var CardNum = tabControl.m_tpgCards.RegisteredCardsForm.m_Cards.wSelectedItems;

Any suggestion on how to code this using JavaScript have given the value of CardNum (above)  for each row?.

Thanks in advanced...

Azeddin.