FCC parameter in IDoc to File scenario

Hi,

We have configured FCC parameter to get the comma separated flat file. File is getting created but I want header line in the file which is not getting created. Can any please suggest on the same?

Target DT structure is as below:

Inside root node FileName_Values is used for variable substitution in target File Name and these fields should not be present in file content.

Second node inside root node is having actual structure of file.

FCC configuration is as below:

Thanks,

Vertika