EasyXLS

How to export data to CSV file in J#.NET

package Tutorial30;

/* ---------------------------------------------------------
 * Tutorial 30
 * 
 * This tutorial shows how to export data to CSV file in J#.
 * ---------------------------------------------------------*/

import System.*;
import EasyXLS.*;
import EasyXLS.Constants.*;

public class Tutorial30
{
    public Tutorial30()
    {
    }

    /** @attribute System.STAThread() */
    public static void main(String[] args)
    {
        Console.WriteLine("Tutorial 30\n----------\n");

        // Create an instance of the class that exports Excel files, having a sheet
        ExcelDocument workbook = new ExcelDocument(2);

        // Set the sheet name
        workbook.easy_getSheetAt(0).setSheetName("First tab");

        // Get the table of data for the worksheet
        ExcelTable xlsFirstTable = ((ExcelWorksheet)workbook.easy_getSheetAt(0)).easy_getExcelTable();

        // Add data in cells for report header
        for (int column=0; column<5; column++)
        {
            xlsFirstTable.easy_getCell(0,column).setValue("Column " + (column + 1));
            xlsFirstTable.easy_getCell(0,column).setDataType(DataType.STRING);
        }

        // Add data in cells for report values
        for (int row=0; row<100; row++)
        {
            for (int column=0; column<5; column++)
            {
                xlsFirstTable.easy_getCell(row+1,column).setValue("Data " + (row + 1) + ", " + (column + 1));
                xlsFirstTable.easy_getCell(row+1,column).setDataType(DataType.STRING);
            }
        }

        // Export CSV file
        Console.WriteLine("Writing file C:\\Samples\\Tutorial30 - export CSV file.csv.");
        workbook.easy_WriteCSVFile("C:\\Samples\\Tutorial30 - export CSV file.csv", "First tab");

        // Confirm export of CSV 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();
    }
}

EasyXLS Excel libraries:

.NET
Excel Library for J#
full .NET version to import, export or convert Excel files
Excel Writer for J#
.NET version to create and export 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