public class Person
{
    public string name;
    public string familyName;
    public string email;
}

Person p = newPerson();
p.name = "Abdulkarim Kanaan";
p.familyName = "Kanaan";
p.email = "Abdulkarim2006@hotmail.com";

XmlSerializer xs = new XmlSerializer(typeof(Person));

StreamWriter writer = 
    new StreamWriter("G:\\Test Files\\Person.xml");

xs.Serialize(writer, p);

writer.Close();

static void Main(string[] args)

{
    Person p = new Person();
    p.name = "Abdulkarim";
    p.familyName = "Kanaan";
    p.email = "Abdulkarim2006@hotmail.com";
 
    XmlSerializer xs = new XmlSerializer(typeof(Person));
    StreamWriter writer = 
        new StreamWriter("G:\\Test Files\\Person.xml");
    xs.Serialize(writer, p);
    writer.Close();
}

static void Main(string[] args)

{
   StreamReader reader =
        newStreamReader("G:\\Test Files\\Person.xml");
   Person p1 = (Person)xs.Deserialize(reader);
   reader.Close();
}