original_string: protected function createMetaFile()
      {
          $appName = self::APP_NAME;
          $createdDate = (new \DateTime())->format(\DateTime::W3C);
  
          $metaXmlFileContents = <<<EOD
  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
  <office:document-meta office:version="1.2" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xlink="http://www.w3.org/1999/xlink">
      <office:meta>
          <dc:creator>$appName</dc:creator>
          <meta:creation-date>$createdDate</meta:creation-date>
          <dc:date>$createdDate</dc:date>
      </office:meta>
  </office:document-meta>
  EOD;
  
          $this->createFileWithContents($this->rootFolder, self::META_XML_FILE_NAME, $metaXmlFileContents);
  
          return $this;
      }
code: protected function createMetaFile()
      {
          $appName = self::APP_NAME;
          $createdDate = (new \DateTime())->format(\DateTime::W3C);
  
          $metaXmlFileContents = <<<EOD
  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
  <office:document-meta office:version="1.2" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xlink="http://www.w3.org/1999/xlink">
      <office:meta>
          <dc:creator>$appName</dc:creator>
          <meta:creation-date>$createdDate</meta:creation-date>
          <dc:date>$createdDate</dc:date>
      </office:meta>
  </office:document-meta>
  EOD;
  
          $this->createFileWithContents($this->rootFolder, self::META_XML_FILE_NAME, $metaXmlFileContents);
  
          return $this;
      }
code_tokens: protected function createMetaFile ( ) { $ appName = self :: APP_NAME ; $ createdDate = ( new \ DateTime ( ) ) -> format ( \ DateTime :: W3C ) ; $ metaXmlFileContents =  <<<EOD
  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
  <office:document-meta office:version="1.2" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xlink="http://www.w3.org/1999/xlink">
      <office:meta>
          <dc:creator>$appName</dc:creator>
          <meta:creation-date>$createdDate</meta:creation-date>
          <dc:date>$createdDate</dc:date>
      </office:meta>
  </office:document-meta>
  EOD ; $ this -> createFileWithContents ( $ this -> rootFolder , self :: META_XML_FILE_NAME , $ metaXmlFileContents ) ; return $ this ; }
docstring: Creates the "meta.xml" file under the root folder
  
  @return FileSystemHelper
  @throws \Box\Spout\Common\Exception\IOException If unable to create the file
docstring_tokens: Creates the meta . xml file under the root folder