How to read cyrillic characters?

[RainOGD]

class ExcelDataController extends Controller
{
public function readAndSaveAction()
{
$filename = $this->container->getParameter('xls_fixture_absolute_path');
$phpExcelObject = $this->get('phpexcel')->createPHPExcelObject($filename);
// $writer = $this->get('phpexcel')->createWriter($phpExcelObject, 'Excel5');

    for ($i = 1; $i <= 10; $i++){
        $value = $phpExcelObject->getActiveSheet()->getCell('C' . $i)->getValue();
        var_dump($value);
    }

    die;

// $writer->save($filename);
}
}

I get bad characters when I'm trying to read xlsx file with russian characters. How to resolve this?