Add header (title) on CSV when exporting using XMLPort?

Hi guys.
I am exporting a CSV file using XML port.
I need the first row in CSW file to be certain code (fdl2vv1 in my case) so that CSV looks something like this:

fdl2vv1
Field1;Field2;Field3;Filed4;
Field5;Field6;Field7;Field8.......
Can this be done?
THANKS!