Import from Excel to Data Table - C# Code

 System.Windows.Forms.OpenFileDialog oFileDialog = new System.Windows.Forms.OpenFileDialog();
            oFileDialog.Filter = "Excel (*.xls;*.xlsx;*)|*.xls;*.xlsx;*";

            oFileDialog.ShowDialog();

            string strpath = oFileDialog.FileName;

            //string strpath = @"C:\Users\shihafathw\Desktop\Employees.xls";
            OleDbConnection con = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source= '" + strpath + "';Extended Properties=" + (char)34 + "Excel 8.0;IMEX=1;" + (char)34 + "");

            OleDbDataAdapter da = new OleDbDataAdapter("select * from [Sheet1$]", con);

            DataTable dt = new DataTable();

            da.Fill(dt);