No, no export thing and honestly I don't have any intention to do such thing. This app uses a random script to pick unique winners so I don't see a need for this.
foreach( \IPS\Db::i()->select( '*', 'raffles_participants', array( 'rp_raffle_id=?', $raffle->id ), 'rand()', array( 0, count( $raffle->getParticipants() ) ) ) as $row )
{
$winners[] = $row['rp_member_id'];
$uniqWinners[ $row['rp_member_id'] ] = $row['rp_member_id'];
}