RavenDB - HTTP request to return data in format other than CSV or JSON

I'm running RavenDB v3.0. According to the RavenDB documentation, you are able to access an HTTP link to export a list of documents in CSV format. I've followed the instructions and can generate the export by connecting to an address similar to their example:

http://my-server/databases/db-name/streams/query/DocumentsForExtract?resultsTransformer=TransformForExtract&format=excel

The above URL will return the extract in CSV format. If I remove the format parameter from the request, or alter it to anything else, it returns it in JSON. I want to know if there are any other formats available? I'd like to get it in XML if possible, but I can't seem to find any documentation about this which is why I'm asking here on SO.

Thanks in advance.

No, that endpoint supports only CSV and JSON