Corrupt Word file, even when no content set

[abombelli]

I create a word file for automatic download, but even with no content set, I cannot open the file in Word as I get the following error: "The open XML file ........docx cannot be opened because there are problems with the contents or the file name might contain invalid characters (for example , \ /)"

This is my code, as you can see there is no text with any invalid characters.

// Init PHPWord
require_once ABSPATH . 'wp-content/themes/ine-intranet/PhpWord/Autoloader.php';
\PhpOffice\PhpWord\Autoloader::register();
$phpWord = new \PhpOffice\PhpWord\PhpWord();
$file = 'INE_Report.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:https://output");

Any idea?

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[luoboding]

any update?

[github-actions]

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