Untitled

                header('Content-type: application/vnd.oasis.opendocument.text');
                header('Content-Disposition: attachment; filename="' . $this->viewVars['course']['title'] . '.odt"');
                header("Content-Length: " .  filesize($destinationFile));
                header("Content-Transfer-Encoding: binary\n");

                readfile($destinationFile);
                exit;