Fra excel til ms sql

Kode 

string excelConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Book1.xls;ExtendedProperties=""Excel 8.0;HDR=YES;""";



        using (OleDbConnection connection =
             new OleDbConnection(excelConnectionString))
        {

            OleDbCommand command = new OleDbCommand
            ("Select ID,Data FROM [Data$]", connection);

            connection.Open();

            using (DbDataReader dr = command.ExecuteReader())
            {
                string sqlConnectionString = "Data Source=.;Initial Catalog=Test;Integrated Security=True";

                using (SqlBulkCopy bulkCopy =
                   new SqlBulkCopy(sqlConnectionString))
                {
                    bulkCopy.DestinationTableName = "ExcelData";
                    bulkCopy.WriteToServer(dr);