How to Create Excel file in Java using POI API



import java.io.FileOutputStream;


import org.apache.poi.hssf.usermodel.HSSFRow;

import org.apache.poi.hssf.usermodel.HSSFSheet;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;


public class CreateExcelFile {

public static final String FILE_NAME = “D:\\test.xls”;


public void createExcelFile(String filename) {

try {

HSSFWorkbook hwb = new HSSFWorkbook();

HSSFSheet sheet = hwb.createSheet(“Sheet1”);

 

HSSFRow rowhead = sheet.createRow((short) 0);

rowhead.createCell((short) 0).setCellValue(“S.No.”);

rowhead.createCell((short) 1).setCellValue(“Emp ID”);

rowhead.createCell((short) 2).setCellValue(“EMP Name”);

rowhead.createCell((short) 3).setCellValue(“Dept”);

 

rowhead = sheet.createRow((short) 1);

rowhead.createCell((short) 0).setCellValue(“1”);

rowhead.createCell((short) 1).setCellValue(“EMP1”);

rowhead.createCell((short) 2).setCellValue(“Mallik”);

rowhead.createCell((short) 3).setCellValue(“Java”);


FileOutputStream fileOut = new FileOutputStream(filename);

hwb.write(fileOut);

fileOut.close();

System.out.println(“Your excel file has been generated!”);


} catch (Exception ex) {

System.out.println(ex);

ex.printStackTrace();

}

}

public static void main(String[] args) {

CreateExcelFile excelFile = new CreateExcelFile();

excelFile.createExcelFile(FILE_NAME);

}

}