XLSXWriter::setAuthor PHP Method

    public function setAuthor($author = '')
    {
        $this->author = $author;
    }

 static function xls()
 {
     return function ($req, $res, $svc, $app) {
         $time = date('H:i:s', time());
         $date = date('d-m-Y');
         $exportFile = __DIR__ . "/../xls/relatorio-tickets-{$time}.xlsx";
         $headers = [['Protocolo', 'Operadora', 'Status', 'Cidade', 'Problema', 'Designação', 'Cliente Final', 'Data']];
         $rows = array_map(function ($ticket) {
             return [$ticket->protocolo, $ticket->operadora, $ticket->status, $ticket->cidade, $ticket->tipo_problema, $ticket->designacao, $ticket->cliente_final, date('d/m/Y', strtotime($ticket->criado_em))];
         }, Tickets::filter($req, $app));
         $writer = new \XLSXWriter();
         $writer->writeSheet(array_merge($headers, $rows), 'Relatório ' . $date);
         $writer->setAuthor('Sim TV - Trouble Ticket');
         $writer->writeToFile($exportFile);
         $res->file($exportFile, "Relatório Tickets {$time}.xlsx");
     };
 }