EasyXLS

How to read XLSB file in J#.NET

package Tutorial38;

/* ------------------------------------------------------------------------------
 * Tutorial 38
 * 
 * This tutorial shows how to read an Excel XLSB file in J# (the
 * XLSB file generated by Tutorial 29 as base template), modify
 * some data and save it to another XLSB file (Tutorial38 - read XLSB file.xlsb).
 * --------------------------------------------------------------------------- */

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

public class Tutorial38
{

    public Tutorial38()
    {
    }

    /** @attribute System.STAThread() */
    public static void main(String[] args)
    {
        Console.WriteLine("Tutorial 38\n-----------\n");

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

        // Read XLSB file
        Console.WriteLine("Reading file C:\\Samples\\Tutorial29.xlsb");

        if (workbook.easy_LoadXLSBFile("C:\\Samples\\Tutorial29.xlsb"))
        {
            // Get the table of data for the second worksheet
            ExcelTable xlsSecondTable = 
                    ((ExcelWorksheet)workbook.easy_getSheet("Second tab")).easy_getExcelTable();

            // Write some data to the second sheet
            xlsSecondTable.easy_getCell("A1").setValue("Data added by Tutorial38");

            for (int column=0; column<5; column++)
            {
                xlsSecondTable.easy_getCell(1, column).setValue("Data " + (column + 1));
            }

            // Export the new XLSB file
            Console.WriteLine("\nWriting file C:\\Samples\\Tutorial38 - read XLSB file.xlsb.");
            workbook.easy_WriteXLSBFile("C:\\Samples\\Tutorial38 - read XLSB file.xlsb");

            // Confirm export of Excel file
            String sError = workbook.easy_getError();
            if (sError.Equals(""))
                Console.Write("\nFile successfully created.");
            else
                Console.Write("\nError encountered: " + sError);
        }
        else
        {
            Console.WriteLine("\nError reading file C:\\Samples\\Tutorial29.xlsb \n" + 
                              workbook.easy_getError());
        }

        Console.WriteLine("\nPress Enter to exit ...");

        // Dispose memory
        workbook.Dispose();

        Console.ReadLine();
    }
}

EasyXLS Excel libraries:

.NET
Excel Library for J#
full .NET version to import, export or convert Excel files
Excel Reader for J#
.NET version to read and import Excel files
Download EasyXLS™ Excel Library for J#

File formats:

MS Excel 97 - 2003
MS Excel 2007 - 2019
MS Excel 2021
Office 365
XLSXXLSMXLSBXLS
XMLHTMLCSVTXT