Selenium Excel write

import com.thoughtworks.selenium.DefaultSelenium;

import java.io.FileOutputStream;
import jxl.Workbook;
import jxl.write.WritableWorkbook;
import jxl.write.WritableSheet;
import jxl.write.Label;


public class ExcelWrite
{
    public static void main(String[] args) throws Exception
    {
    String x;
    DefaultSelenium s=new DefaultSelenium("localhost",1111,"*firefox","http://");
    s.start();
    s.open("http://content.icicidirect.com/newsiteContent/Market/MarketStats.asp?stats=DailySharePrices");
    s.windowMaximize();
    Thread.sleep(8000);
    int r=s.getXpathCount("id('gridSource')/x:tbody/x:tr").intValue();
   
    FileOutputStream fs=new FileOutputStream("e:\\sampledata.xls");   
    WritableWorkbook wb=Workbook.createWorkbook(fs);
    WritableSheet ws=wb.createSheet("sheet1",0);
   
    for(int i=1;i<=r;i++)
    {
    x=s.getText("xpath=id('gridSource')/x:tbody/x:tr["+i+"]/x:td[1]");
    ws.addCell(new Label(0,i,x));
    }
   
    wb.write();
    wb.close();
    }
   
}