Difference between TRIMSPOOL and TRIMOUT

SET TRIMSPOOL ON
Determines whether SQL*Plus allows trailing blanks at the end of each
spooled line. ON removes blanks at the end of each line, which may
improve performance especially when you access SQL*Plus from a slow
communications device. TRIMSPOOL ON does not affect terminal output.
SET TRIMOUT ON
Determines whether SQL*Plus allows trailing blanks at the end of each
displayed line. ON removes blanks at the end of each line, which may
improve performance especially when you access SQL*Plus from a slow
communications device. TRIMOUT ON does not affect spooled output.