Basic custom generic Serializer to add your data to a file

gistfile1.txt

public static string Serializer<T>(this T obj)
{
    var sb = new StringBuilder();

    sb.AppendLine($"<record>");

    var props = obj.GetType().GetProperties();

    // add values
    foreach (var prop in props)
    {
        sb.AppendLine($"<{prop.Name} type='{prop.PropertyType}'>{prop.GetValue(obj, null)}</{prop.Name}>");
    }

    sb.AppendLine($"</record>");

    return sb.ToString();
}