SQL & PL/SQL :: Export Data File Using Dynamic SQL And Header?

I have a set of store procedures that will construct the header and data dynamically. This procedure will return a CURSOR.Now, I will write a new procedure to export data file by calling the above store procedure.

a) is it possible for me to retain the dynamic header when I export the data out ?

b) use 1 export data file procedure to handle it without coding for each data file I want to export.

I have been testing manually creating the header. I am assigning the header string myself.

UTL_FILE.PUTF(fHandler, header_string);

and then use a cursor to loop through the data for each store procedure.

UTL_FILE.PUTF(fHandler, record_string);