import java.io.*;
import org.apache.poi.hssf.usermodel.*;

public class TestPOI {

    public static void main(String[] args) throws IOException, FileNotFoundException {

        FileInputStream is = new FileInputStream("poi_nologo1.xls");

        HSSFWorkbook wb = new HSSFWorkbook(is);

        HSSFSheet sheet = wb.getSheetAt(0);

//         HSSFWorkbook wb = new HSSFWorkbook();

//         HSSFSheet sheet = wb.createSheet();

        HSSFRow row = sheet.createRow(new Integer(7).shortValue());

        HSSFCell cell = row.createCell(new Integer(3).shortValue());

//         HSSFCellStyle cStyle = cell.getCellStyle();

//         HSSFFont cFont = wb.createFont();

//         cFont.setFontHeightInPoints(new Integer(12).shortValue());

//         cFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);

//         cFont.setFontName(HSSFFont.FONT_ARIAL);

//         cStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);

//         cStyle.setFont(cFont);

        cell.setCellValue("Are we there yet?");

        FileOutputStream os = new FileOutputStream("test.xls");

        wb.write(os);
    }

}