Several output formatters are supported:

  • CSV
  • GSA Feed (Google Search Appliance)
  • In Memory (for test purposes mostly)
  • JSON
  • Sitemap
  • XML
  • Excel XML
  • XLSX (SpreadsheetML format for Microsoft Excel)

You may also create your own. To do so, simply create a class that implements the Exporter\Writer\WriterInterface, or better, if you know what Content-Type header should be used along with your output and what format it produces, TypedWriterInterface.