How to import Excel sheet data to DataSet in J#.NET

package Tutorial35;

/* ------------------------------------------------------------------
 * Tutorial 35
 * 
 * This tutorial shows how to import Excel sheet to DataSet in J#.
 * The data is imported from a specific Excel sheet (For this example 
 * we use the Excel file generated in Tutorial 09).
 * ------------------------------------------------------------------ */

import System.*;
import System.IO.*;
import System.Data.*;
import EasyXLS.*;

public class Tutorial35
{

    public Tutorial35()
    {
    }

    /** @attribute System.STAThread() */
    public static void main(String[] args)
    {
        Console.WriteLine("Tutorial 35\n-----------\n");

        // Create an instance of the class that imports Excel files
        ExcelDocument workbook = new ExcelDocument();

        // Import Excel sheet to DataSet
        Console.WriteLine("Reading file C:\\Samples\\Tutorial09.xlsx.\n");
        DataSet ds = workbook.easy_ReadXLSXSheet_AsDataSet("C:\\Samples\\Tutorial09.xlsx", "First tab");

        String sError = workbook.easy_getError();
        if (sError.Equals(""))
        {
            // Display imported DataSet values
            DataTable dt = ds.get_Tables().get_Item(0);
            for (int row=0; row<dt.get_Rows().get_Count(); row++)
                for (int column=0; column<dt.get_Columns().get_Count(); column++)
                    Console.WriteLine("At row " + (row + 1) + ", column " + (column + 1) +
                            " the value is '" + dt.get_Rows().get_Item(row).get_ItemArray()[column] + "'");
        }
        else
            Console.Write("\nError encountered: " + sError );

        Console.Write("\nPress Enter to Exit...");

        // Dispose memory
        workbook.Dispose();

        Console.ReadLine();
    }
}