only remove the joined header column if requested.
only remove the joined header column if requested.

shashidhar22/bio-playground,brentp/bio-playground,brentp/bio-playground,shashidhar22/bio-playground,brentp/bio-playground,shashidhar22/bio-playground,shashidhar22/bio-playground,brentp/bio-playground,brentp/bio-playground,brentp/bio-playground,shashidhar22/bio-playground,shashidhar22/bio-playground