Is there any reason that the given code could corrupt the xls file that is being created

import java.io.*;

import java.util.Date;

import jxl.*;

import jxl.read.biff.BiffException;

import jxl.write.*;

import jxl.write.Number;

import jxl.write.biff.RowsExceededException;

public class write1 {

public void start1() throws IOException, WriteException, BiffException{

Workbook r = Workbook.getWorkbook(new File("F://myfile.xls"));

WritableWorkbook workbook = Workbook.createWorkbook((new File("F:\\Output.xls")),r );

// creates a workbook object inside java

WritableSheet s1 = workbook.createSheet("Client", 1);

// creates a sheet object using the workbook object and creates a sheet with the name clients in the second sheet in the workbook

Number n1 = new Number(0,1,232);

s1.addCell(n1);

workbook.write();

workbook.close();

}

}