用phpword生成的word文档在win7下正常，在mac下就文件损坏？

Question

相同的代码，在win7下生成的word就没问题，在mac下就文件就损坏了，打开都是乱码
`
function docMap()

{
    $phpWord = new \PhpOffice\PhpWord\PhpWord();
    if(ob_get_length()) ob_end_clean();
    $section = $phpWord->createSection();
    $section->addText('Hello World!');
    $file = 'HelloWorld.docx';
    header("Content-Description: File Transfer");
    header('Content-Disposition: attachment; filename="' . $file . '"');
    header('Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document');
    header('Content-Transfer-Encoding: binary');
    header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
    header('Expires: 0');
    $xmlWriter = \PhpOffice\PhpWord\IOFactory::createWriter($phpWord, 'Word2007');
    $xmlWriter->save("php://output");    
    exit();
}

`

求各路大神指教！### 问题描述