PL/SQL UTL_FILE output

I'm just starting out with PL/SQL and would appreciate some advice. I've written a simple procedure to write some data out to a file. I would like the file to have fixed width fields, seperated by pipes. The data gets out to the file OK, but not fixed width. What can I do to correct that? Also, please point out my rookie mistakes.

-- 
Randy Harris
(tech at promail dot com)


CREATE OR REPLACE PROCEDURE E-test IS

CURSOR c1 IS
SELECT E.server_id, E.event_grad, E.pmt_refere,
E.USER023, E.APPROV_COD, E.PAYMENT_AM,
C.xcode, c.xstartdate,
P.xfirstname, P.xlastname, P.user017,P.country
FROM LMS_DATA.EVENT E, LMS_DATA.CLASS C, LMS_DATA.PERSON P
WHERE C.xlocator=E.xlocator
AND E.yuniquekey = P.yuniquekey
AND e.xstatus='E'
AND e.payment_am > 0
AND e.event_grad NOT IN ('TC','SS')
AND e.user024 IS NULL
AND E.server_id NOT IN ('1009543','1089787','62425')
AND TRUNC(e.xupdate) = '28-FEB-2005'
;

fhandle utl_file.file_type ;

BEGIN
fhandle := utl_file.fopen ( 'E:\Registrar', 'E-test.txt','W') ;

FOR o IN c1
LOOP
utl_file.put_line (fhandle,
  o.server_id


  || '|' || o.event_grad

  || '|' || o.pmt_refere

  || '|' || o.user023

  || '|' || o.approv_cod

  || '|' || o.payment_am

  || '|' || o.xcode

  || '|' || o.xstartdate

  || '|' || o.xfirstname

  || '|' || o.xlastname

  || '|' || o.user017

  || '|' || UPPER(o.country)

  );

-- Insert the records into the Log file
INSERT INTO EXTRACTLOG VALUES (
  o.server_id,
  o.event_grad,
  o.pmt_refere,
  o.user023,
  o.approv_cod,
  o.payment_am,
  o.xcode,
  o.xstartdate,
  o.xfirstname,
  o.xlastname,
  o.user017,
  UPPER(o.country),
  SYSDATE) ;
  COMMIT ;

END LOOP;

utl_file.fclose (fhandle);

EXCEPTION
    [deleted for brevity]
END;