if($file["tmp_name"]){                    $handle = new Upload($file);                    if ($handle->uploaded) {                        $handle->file_auto_rename = true;                        $handle->allowed[] = 'application/x-zip';                        $handle->Process($savepath);                        $filename = $handle->file_dst_name;                        $handle->Clean();                        $attachment = &JTable::getInstance('K2Attachment', 'Table');                        $attachment->itemID = $row->id;                        $attachment->filename = $filename;                        $attachment->title = ( empty($attachments_titles[$counter])) ? $filename : $attachments_titles[$counter];                        $attachment->titleAttribute = ( empty($attachments_title_attributes[$counter])) ? $filename : $attachments_title_attributes[$counter];                        $attachment->store();                    } else {                        $mainframe->redirect('index.php?option=com_k2&view=items', $handle->error, 'error');

$handle->allowed[] = 'application/x-zip';