Webapi 2 not give list in XML

public IEnumerable<Word> GetWords()
{
    return db.Words.ToList();
}

I need this output in XML using webapi2; i already google and try

var appXmlType = config.Formatters.XmlFormatter.SupportedMediaTypes.FirstOrDefault(t => t.MediaType == "text/xml");
config.Formatters.XmlFormatter.SupportedMediaTypes.Remove(appXmlType);

It gives data only in JSON.

also I update following package: Microsoft.AspNetCore.Mvc.Formatters.Xml

But how can I get it in XML. Thanks in advance.