Exporting DataTable to Excell file using OLEDB connection ?

Hi all,

Im trying to export my datatable to an excel.xlsx file. It doesnt seem like my dataset is getting any data so it wont copy to the excell file. I was wondering if there is a better way of doing this and overcoming this problem?

iv included my code that im using at the moment:

private void button3_Click(object sender, EventArgs e)
        {
            try
            {

               string PathConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source =" + textBox1.Text + ";Extended Properties =\"Excel 12.0;HDR=Yes;ImportMixedTypes=Text;\";";
               conn = new OleDbConnection(PathConn);
               mydataAdapter = new OleDbDataAdapter("Select Rw,Type,FireRessist,SystemName from [Sheet1$]", conn);
               dt = new DataTable();

               mydataAdapter.Fill(dt);
               dataGridView1.DataSource = dt;
               conn.Close();

                DataSet ds = new DataSet("New_DataTable");
                ds.Locale = System.Threading.Thread.CurrentThread.CurrentCulture;
                mydataAdapter.Fill(dt);
                ds.Tables.Add(dt);
                ExcelLibrary.DataSetHelper.CreateWorkbook("MyExcelFile.xlsx", ds);

Any help please !!

Ky_EX