need help.. how to hide certain excel column in c#

i download and used excellibrary in my coding. i need help in calling my function from database to excel.. i cannot hide certain columns such as id number for example.. hope you can help me out. and i also need help how to make multiple database go to into same excel.. tq very much.. below is my coding

 public void load_table_exec()// this is use to load table automatically //illi female
        {
            string constring = "datasource=localhost; port=3306;username=root;password=";
            MySqlConnection conDataBase = new MySqlConnection(constring);
            MySqlCommand cmdDataBase = new MySqlCommand("select * from database1.example ; ", conDataBase); // 


            try
            {
                MySqlDataAdapter sda = new MySqlDataAdapter();
                sda.SelectCommand = cmdDataBase;
                DataTable dbdataset = new DataTable();
                sda.Fill(dbdataset);
                BindingSource bSource = new BindingSource();

                bSource.DataSource = dbdataset;
                dataGridView1.DataSource = bSource;
                sda.Update(dbdataset);




                DataSet ds = new DataSet("New_DataSet");
                ds.Locale = System.Threading.Thread.CurrentThread.CurrentCulture;
                sda.Fill(dbdataset);
                ds.Tables.Add(dbdataset);

                ExcelLibrary.DataSetHelper.CreateWorkbook("MyExcelFile.xls", ds);

            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

i did also try  MySqlCommand cmdDataBase = new MySqlCommand("select name,age, ... from database1.example ; ", conDataBase); but the problem occurred when i wanted to delete user or update it since it need to be referred to id  um.. need help.. tq