Remove Column Header into the Output Text file

Question

I want to create a flat file (text file) of my query from Oracle SQL Developer.

I have successfully created the text file using SPOOL, thru a script text file, but i

Answer 1

Add:

set underline off

to the beginning of the SQL script.

In my SQL scripts I have:

SET TERMOUT OFF
set colsep |
set pagesize 0 
set trimspool on
set pagesize  0 embedded on
SET heading on
SET UNDERLINE OFF
spool file_path
-- your SQL here
spool off

See this book for reference.