Here's the senario: The visitor fills out a form which populates a database. Admin then can login and view that info. Is it possible for them to be able to download a table and/or row as a .CSV file?
Yes, PHP will export data into a CSV format. Check out the following links, give it a try and if you still need help let me know.
PHP "fputcsv" function- http://us2.php.net/manual/en/function.fputcsv.php
Google search results- http://www.modwest.com/help/kb6-135.html