How to create Excel file in J#.NET

package Tutorial03;

/* --------------------------------------------------------------
 * Tutorial 03
 *
 * This tutorial shows how to create an Excel file that has
 * multiple sheets in J#. The created Excel file is empty and the 
 * next tutorial shows how to add data into sheets.
 * ----------------------------------------------------------- */

import System.Console;
import EasyXLS.*;

public class Tutorial03
{
    public Tutorial03()
    {
    }

    /** @attribute System.STAThread() */
    public static void main(String[] args)
    {
        Console.WriteLine("Tutorial 03\n----------\n");

        // Create an instance of the class that creates Excel files, having two sheets
        ExcelDocument workbook = new ExcelDocument(2);
            
        // Set the sheet names
        workbook.easy_getSheetAt(0).setSheetName("First tab");
        workbook.easy_getSheetAt(1).setSheetName("Second tab");
                
        // Create the Excel file
        Console.WriteLine("Writing file C:\\Samples\\Tutorial03 - create Excel file.xlsx.");
        workbook.easy_WriteXLSXFile("C:\\Samples\\Tutorial03 - create Excel file.xlsx");

        // Confirm the creation of Excel file
        String sError = workbook.easy_getError();
        if (sError.Equals(""))
            Console.Write("\nFile successfully created. Press Enter to Exit...");
        else
            Console.Write("\nError encountered: " + sError + "\nPress Enter to Exit...");

        // Dispose memory
        workbook.Dispose();

        Console.ReadLine();
    }
}