formating output

anyone know how to eliminate the lining up of columns from sqlplus? 8.1.6. i want a csv output and i get a lot of xtra white space before and after the commas

set tab off;
set trim on;
set linesize 9999;
set colsep ',';
set newpage none;
set heading off;
set wrap off;
set feedback off;
set pagesize 0;

select * from tab; Received on Wed Feb 20 2002 - 20:30:16 CST