Экспорт из Exel в базу данных SQL Server

using System;
using DevExpress.Xpo.Metadata;
using System.Threading;
using System.Data.SqlClient;
using DevExpress.Xpo.DB;
using DevExpress.Xpo;
namespace PortImport {
    public class DataPort : XPCustomObject {
        public DataPort(Session session) : base(session) { }
        int id;
        string port, country;
        Single latitude, longtitude;
        [Persistent("ID")]
        public int ID {
            get { return id; }
            set { SetPropertyValue<int>("ID", ref id, value); }
        }
        [Persistent("Port")]
        public string Port {
            get { return port; }
            set { SetPropertyValue<string>("Port", ref port, value); }
        }
        [Persistent("Latitude")]
        public Single Latitude {
            get { return latitude; }
            set { SetPropertyValue<Single>("Latitude", ref latitude, value); }
        }
        [Persistent ("Longtitude")]
        public Single Longtitude {
            get { return longtitude; }
            set { SetPropertyValue<Single>("Longtitude", ref longtitude, value); }
        }
        [Persistent("Country")]
        public string Country {
            get { return country; }
            set { SetPropertyValue<string>("Country", ref country, value); }
        }
    }
}

using System;
using DevExpress.Xpo.Metadata;
using System.Threading;
using System.Data.SqlClient;
using DevExpress.Xpo.DB;
using DevExpress.Xpo;
namespace PortImport {
    public class Program {
        static XPDictionary GetDictionary() {
            XPDictionary dict = new ReflectionDictionary();
            dict.GetDataStoreSchema(typeof(DataPort).Assembly);
            return dict;
        }
        static void Main(string[] args) {
            string connectionString = PortImport.Properties.Settings.Default.SqlConnection;
            try {
                Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("ru-RU");
                Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo("ru-RU");
                SqlConnection connection = new SqlConnection(connectionString);
                MSSqlConnectionProvider provider = new MSSqlConnectionProvider(connection, AutoCreateOption.DatabaseAndSchema);
                using (UnitOfWork uow = new UnitOfWork(new SimpleDataLayer(GetDictionary(), provider))) {
         uow.CommitChanges();
                }             
            }
            catch (Exception e) {
                Console.WriteLine("An exception occurs: '" + e.Message + "'\r\nProcessing incomplete!");
                Console.ReadKey();
            }
        }
    }
}