Extra Mime Types - WordPress

gistfile1.php

if(!function_exists('rp_modify_post_mime_types')) {
function rp_modify_post_mime_types($post_mime_types) {
    $post_mime_types['application/pdf'] = array(__('PDF'), __('Manage PDF'), _n_noop('PDF <span class="count">(%s)</span>', 'PDF <span class="count">(%s)</span>'));
    $post_mime_types['text/csv'] = array(__('CSV'), __('Manage CSV'), _n_noop('CSV <span class="count">(%s)</span>', 'CSV <span class="count">(%s)</span>'));
    $post_mime_types['application/vnd.openxmlformats-officedocument.wordprocessingml.document'] = array(__('Word Doc'), __('Manage Word Doc'), _n_noop('Word Doc <span class="count">(%s)</span>', 'Word Doc <span class="count">(%s)</span>'));
    $post_mime_types['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'] = array(__('Excel'), __('Manage Excel'), _n_noop('Excel <span class="count">(%s)</span>', 'Excel <span class="count">(%s)</span>'));
    $post_mime_types['application/vnd.ms-excel.sheet.macroEnabled.12'] = array(__('Excel (Macro Enabled)'), __('Manage Excel'), _n_noop('Excel <span class="count">(%s)</span>', 'Excel <span class="count">(%s)</span>'));
    return $post_mime_types;
}
}
add_filter('post_mime_types', 'rp_modify_post_mime_types');