using System;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        var sqliteGuidString = "8A464F7F4BB211EC8C6200224802C5B9";      

        var realDotNetGuid = new Guid(StringToByteArray(sqliteGuidString));

        var backToSqliteString = BitConverter.ToString(realDotNetGuid.ToByteArray()).Replace("-","");

        Console.WriteLine("Sqlite guid string "+sqliteGuidString+" is this .net guid "+realDotNetGuid.ToString());

        Console.WriteLine("Back to Sqlite guid string "+backToSqliteString);

    }

    public static byte[] StringToByteArray(string hex) {

       return Enumerable.Range(0, hex.Length)

                     .Where(x => x % 2 == 0)

                     .Select(x => Convert.ToByte(hex.Substring(x, 2), 16))

                     .ToArray();

    }

}