Is it possible to turn off

prompt Importing table {table}...
set feedback off
set define off


when exporting result set?

This is currently no possible. I have added this to the list of enhancement requests.

Upvote.... particularly the PROMPT statements that SQL*PLUS does not understand. Helpful when sending stuff to backward colleagues stuck with Stone Age tools....

+1

[quote=Allen Marshall]particularly the PROMPT statements that SQL*PLUS does not understand.[/quote]

Hmm, what version of SQL*Plus?
Here's the doc for 3.3 (DB 7.3.4).