Adding CRLF for an header of a flat file to create - SSIS 2016

Hi,

for a SSIS 2016 package, in order to produce a txt file with one header row, some body rows and one footer row, I'd like to put a carriage return + line feed inside the header of the flat file destination that writes the footer row.

I've executed some proofs but without any results.

Any suggests to me, please? Thanks