XmlDocument x = JsonConvert.DeserializeXmlNode(jsonstr);

{"users":[{"id":1,"name":"Ivan","email":"iii@mail.ru"},{"id":2,"name":"Peter","email":"ppp@mail.ru"},{"id":3,"name":"Victor","email":"vvv@mail.ru"},{"id":4,"name":"Alexander","email":"aaa@mail.ru"},{"id":5,"name":"Michael","email":"mmm@mail.ru"}]}