EasyXLS

How to merge cells 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 merges cells in Excel sheet

Execute the following Java code that exports an Excel file with merge cells.

package testexceljava;

import EasyXLS.*;

/* ---------------------------------------------------------------------------------
 | Tutorial 10
 | 
 | This tutorial shows how to export an Excel file with a merged cell range in Java.                  
 * --------------------------------------------------------------------------------- */

public class Tutorial10 {

    public static void main(String[] args) {
        try {
            System.out.println("Tutorial 10");
            System.out.println("----------");

            // Create an instance of the class that exports Excel files
            ExcelDocument workbook = new ExcelDocument(1);

            // Get the table of data for the worksheet
            ExcelTable xlsTable = ((ExcelWorksheet)workbook.easy_getSheet("Sheet1")).easy_getExcelTable();

            // Merge cells by range
            xlsTable.easy_mergeCells("A1:C3");

            // Export Excel file
            System.out.println("Writing file: C:\\Samples\\Tutorial10 - merge cells in Excel.xlsx");
            workbook.easy_WriteXLSXFile("C:\\Samples\\Tutorial10 - merge cells in Excel.xlsx");

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

            // Dispose memory
            workbook.Dispose();
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

EasyXLS Excel libraries:

Java
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 - 2019
MS Excel 2021
Office 365
XLSXXLSMXLSBXLS
XMLHTMLCSVTXT