Program.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;

namespace XmlExample
{
    [Serializable]
    public class Structure
    {
        public static string ListToString<T>(List<T> l)
        {
            var csv = l.Select(o => o.ToString()).Aggregate((s1, s2) => s1 + ", " + s2);
            return "(" + csv + ")";
        }
        public string Name { get; set; }
        public string Description { get; set; }
        public List<string> Tags { get; set; }
        public List<string> GridSet { get; set; }
        public string StartingGrid { get; set; }

        public override string ToString()
        {
            return string.Format("Name: {0}
 Description: {1}
 Tags: {2}
 GridSet: {3}
 StartingGrid: {4}", Name, Description, ListToString(Tags), ListToString(GridSet), StartingGrid);
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            string fname = Path.GetTempFileName();

            var structure = new Structure {
                Name = "Example structure",
                Description = "Just an example structure used to test structure serialization.",
                Tags = new List<string> { "Example", "Structure", "Serialization" },
                GridSet = new List<string> { "Grid 1", "Grid 2", "Grid 3" },
                StartingGrid = "Grid 1"
            };

            Console.WriteLine("Testing serialization of structure:");
            Console.WriteLine(structure);
            Console.WriteLine();
            Console.WriteLine(Enumerable.Repeat("-", 70));
            Console.WriteLine();

            // Serialization
            var serializer = new XmlSerializer(typeof(Structure));
            using (var stream = File.OpenWrite(fname)) {
                serializer.Serialize(stream, structure);
            }

            // Read from file and print xml
            using (var stream = File.OpenText(fname)) {
                var serialized = stream.ReadToEnd();
                Console.WriteLine(serialized);
            }

            Console.WriteLine();
            Console.WriteLine(Enumerable.Repeat("-", 70));
            Console.WriteLine();

            //Deserialization
            var deserializer = new XmlSerializer(typeof(Structure));
            using (var stream = File.OpenRead(fname)) {
                var deserialized = (Structure)serializer.Deserialize(stream);
                Console.WriteLine("Deserialized structure:");
                Console.WriteLine(deserialized);
            }

            Console.ReadLine();

        }
    }
}