Write Results to Excel Sheet Using POI jars

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
public class WriteDataIntoExcelFile {
public static void main(String[] args) throws InvalidFormatException,
                     IOException {
              // initilize fileInputStream and set path of excel file
              InputStream is = new FileInputStream("G:/DATA.xls");
              // Create workbook and access file into Workbook
              Workbook wb = WorkbookFactory.create(is);
              // Get sheet by sending sheet id or sheet name
              Sheet s = wb.getSheetAt(0);
              //Sheet s = wb.getSheetAt(“Sheet1”);
              // Create object for Row and pass which row need to be accessed
              Row r = s.getRow(0);
              //Create new cell and set data by passing column number and Cell Value
              r.createCell(2).setCellValue("Result"); 
              r = s.getRow(1);          
              //Create new cell and set data by passing column number and Cell Value
              r.createCell(2).setCellValue("PASS");
              r = s.getRow(2);    
              //Create new cell and set data by passing column number and Cell Value
              r.createCell(2).setCellValue("FAIL");
              //Initilize file outputStream
              FileOutputStream fOut = new FileOutputStream("G:/SDATA.xls");
              //Write into workbook
              wb.write(fOut);
              //close file
              fOut.close();
              is.close();         
       }
}