Box\Spout\Writer\ODS\Helper\FileSystemHelper::createManifestFile PHP Method

    protected function createManifestFile()
    {
        $manifestXmlFileContents = <<<EOD
<?xml version="1.0" encoding="UTF-8"?>
<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">
    <manifest:file-entry manifest:full-path="/" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>
    <manifest:file-entry manifest:full-path="styles.xml" manifest:media-type="text/xml"/>
    <manifest:file-entry manifest:full-path="content.xml" manifest:media-type="text/xml"/>
    <manifest:file-entry manifest:full-path="meta.xml" manifest:media-type="text/xml"/>
</manifest:manifest>
EOD;
        $this->createFileWithContents($this->metaInfFolder, self::MANIFEST_XML_FILE_NAME, $manifestXmlFileContents);
        return $this;
    }