ASP.NET WebAPI to return XML instead of the default JSON

Question

In my WebApiConfig I have

  var json = config.Formatters.JsonFormatter;
        json.SerializerSettings.PreserveReferencesHandling = Newtonsoft.Json.PreserveReferencesHandling.Objects;
        config.Formatters.Remove(config.Formatters.XmlFormatter);

So all the API's come back as JSON.

There is 1 API call that I need to return XML ..

This is what it have now for my return

      return XDocument.Load(savedXMLFileFromServer);

but it comes back as JSON

Is there anyway to have it come back as XML

Thanks.