original_string: protected function createAppXmlFile()
      {
          $appName = self::APP_NAME;
          $appXmlFileContents = <<<EOD
  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
  <Properties xmlns="http://schemas.openxmlformats.org/officeDocument/2006/extended-properties">
      <Application>$appName</Application>
      <TotalTime>0</TotalTime>
  </Properties>
  EOD;
  
          $this->createFileWithContents($this->docPropsFolder, self::APP_XML_FILE_NAME, $appXmlFileContents);
  
          return $this;
      }
code: protected function createAppXmlFile()
      {
          $appName = self::APP_NAME;
          $appXmlFileContents = <<<EOD
  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
  <Properties xmlns="http://schemas.openxmlformats.org/officeDocument/2006/extended-properties">
      <Application>$appName</Application>
      <TotalTime>0</TotalTime>
  </Properties>
  EOD;
  
          $this->createFileWithContents($this->docPropsFolder, self::APP_XML_FILE_NAME, $appXmlFileContents);
  
          return $this;
      }
code_tokens: protected function createAppXmlFile ( ) { $ appName = self :: APP_NAME ; $ appXmlFileContents =  <<<EOD
  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
  <Properties xmlns="http://schemas.openxmlformats.org/officeDocument/2006/extended-properties">
      <Application>$appName</Application>
      <TotalTime>0</TotalTime>
  </Properties>
  EOD ; $ this -> createFileWithContents ( $ this -> docPropsFolder , self :: APP_XML_FILE_NAME , $ appXmlFileContents ) ; return $ this ; }
docstring: Creates the "app.xml" file under the "docProps" folder
  
  @return FileSystemHelper
  @throws \Box\Spout\Common\Exception\IOException If unable to create the file
docstring_tokens: Creates the app . xml file under the docProps folder