Transfer excel data to sql by C#

private void Import_Click(object sender, EventArgs e)
        {
           string excelcon = @"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\test.xls; Extended Properties=""Excel 8.0;HDR=YES;""";
                SqlConnection sqlcon = new SqlConnection();
                sqlcon.ConnectionString = ConfigurationManager.AppSettings["con"];
                sqlcon.Open();
                OleDbConnection sSourceConnection = new OleDbConnection(excelcon);
                using (sSourceConnection)
                {
                    string sql = string.Format("Select [Name],[Age] FROM [{0}]", "Sheet1$");
                    OleDbCommand command = new OleDbCommand(sql, sSourceConnection);
                    sSourceConnection.Open();
                    using (OleDbDataReader dr = command.ExecuteReader())
                    {
                        while (dr.Read())
                        {
                            string query = "insert into details values (@name,@age)";

                            SqlCommand cmd = new SqlCommand(query, sqlcon);
                            cmd.Parameters.AddWithValue("@name", dr[0].ToString());
                            cmd.Parameters.AddWithValue("@age", dr[1].ToString());
                            cmd.ExecuteNonQuery();

                        }
                        MessageBox.Show("Done");
                    }
                }
        }