$postid, // id of a page, post, or custom type
'post_type' => 'post'
);
$query = new WP_Query($args);
if( $query->have_posts() ) :
$query->the_post();
// the_title();
$download_title = strtolower(str_replace(':', '', get_the_title()));
$download_title = str_replace(' ', '-', $download_title);
?>