How to export data to XLSX file in Java

EasyXLS Excel library can be used to export Excel files in Java. The library works with any Java SE application and without MS Excel installed.

Step 1: Download and install EasyXLS Excel Library for Java

To download the trial version of EasyXLS Excel Library, press the below button:

Download EasyXLS™ Excel Library for Java

If you already own a license key, you may login and download EasyXLS from your account.

Step 2: Create a Java project

If don't have a project already, create a new Java project.

Step 3: Include EasyXLS library into project

EasyXLS.jar must be added to external libraries into your project for Eclipse or to your application CLASSPATH. EasyXLS.jar can be found after installing EasyXLS, in "Lib" folder.

Add EasyXLS library to CLASSPATH

Step 4: Run Java code that exports data to Excel XLSX file

Execute the following Java code that exports to XLSX file.

package testexceljava;

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

/* -------------------------------------------------------------
 | Tutorial 04
 | This tutorial shows how to export data to XLSX file that has
 | multiple sheets in Java. The first sheet is filled with data.	  
 * ------------------------------------------------------------- */

public class Tutorial04{

    public static void main(String[] args) {
        try {
            System.out.println("Tutorial 04");

            // Create an instance of the class that exports 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");

            // Get the table of data for the first 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));

            // 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));

            // Export the XLSX file
            System.out.println("Writing file: C:\\Samples\\Tutorial04 - export data to Excel.xlsx");
            workbook.easy_WriteXLSXFile("C:\\Samples\\Tutorial04 - export data to Excel.xlsx");

            // Confirm export of Excel file
            if (workbook.easy_getError().equals(""))
                System.out.println("File successfully created.");
                System.out.println("Error encountered: " + workbook.easy_getError());

            // Dispose memory
        catch (Exception ex) {

EasyXLS Excel libraries:

Excel Library for Java
full Java version to import, export or convert Excel files
Excel Writer for Java
Java version to create and export Excel files
Download EasyXLS™ Excel Library for Java

File formats:

MS Excel 97 - 2003
MS Excel 2007 - 2010
MS Excel 2013
MS Excel 2016
MS Excel 2019