Creating Excel Chart and Embedding it in Presentation as OLE Object

public static void Run() {
try
{
    //Create a workbook
    Workbook wb = new Workbook();
    //Add an excel chart
    int chartRows = 55;
    int chartCols = 25;
    int chartSheetIndex = AddExcelChartInWorkbook(wb, chartRows, chartCols);	 
    //Set chart ole size
    wb.setOleSize(0, chartRows, 0, chartCols);
    //Get the chart image and save to stream
    ByteArrayOutputStream imageStream=new ByteArrayOutputStream();

    Worksheet work=wb.getWorksheets().get(chartSheetIndex);
    //Getting first chart of sheet
    Chart chart=work.getCharts().get(0);
    chart.toImage(imageStream, new ImageOrPrintOptions());  
	
    //Save the workbook to stream
    ByteArrayOutputStream bout=new ByteArrayOutputStream();
    wb.save(bout,FileFormatType.EXCEL_97_TO_2003);
    //Create a presentation
    Presentation pres = new Presentation();
    Slide sld = pres.getSlideByPosition(1);
    //Add the workbook on slide
    AddExcelChartInPresentation(pres, sld, bout.toByteArray(), imageStream.toByteArray());	
    //Write the presentation to disk
    pres.write(new FileOutputStream("d:\\outputJ.ppt"));           
}catch(Exception e){
      e.printStackTrace();
     }
}

static int AddExcelChartInWorkbook(Workbook wb, int chartRows, int chartCols)
{
    //Array of cell names 
    String[] cellsName = new String[] 
    { 
	"A1", "A2", "A3", "A4",
	"B1", "B2", "B3", "B4",
	"C1", "C2", "C3", "C4",
	"D1", "D2", "D3", "D4",
	"E1", "E2", "E3", "E4"
    };
    //Array of cell data
    int[] cellsValue = new int[] 
    {
	67,86,68,91,
	44,64,89,48,
	46,97,78,60,
	43,29,69,26,
	24,40,38,25
    };
    //Add a new worksheet to populate cells with data
    int  dataSheetIndex =wb.getWorksheets().add();//addSheet();
    Worksheet dataSheet= wb.getWorksheets().get(dataSheetIndex);
    String sheetName = "DataSheet";
    dataSheet.setName(sheetName);
    //Populate DataSheet with data
    int size=java.lang.reflect.Array.getLength(cellsName);  
	
	
    for (int i = 0; i < size; i++)
    {
	String cellName = cellsName[i];
	int cellValue = cellsValue[i];
	dataSheet.getCells().get(cellName).setValue(cellValue);
    }
    //Add a chart sheet
    int chartSheetIndex = wb.getWorksheets().add(SheetType.CHART);
    Worksheet chartSheet = wb.getWorksheets().get(chartSheetIndex);
    chartSheet.setName("ChartSheet");
    int chartSheetIdx = chartSheet.getIndex();	        
    //Add a chart in ChartSheet with data series from DataSheet
    int chartIndex = chartSheet.getCharts().add(ChartType.COLUMN, 0, chartRows, 0, chartCols);
    
    Chart chart = chartSheet.getCharts().get(chartIndex);
	
    chart.getNSeries().add(sheetName + "!A1:E1", false);
    chart.getNSeries().add(sheetName + "!A2:E2", false);
    chart.getNSeries().add(sheetName + "!A3:E3", false);
    chart.getNSeries().add(sheetName + "!A4:E4", false);
    //Set ChartSheet as active sheet
    wb.getWorksheets().setActiveSheetIndex(chartSheetIdx);
    return chartSheetIdx;
}
	
static void AddExcelChartInPresentation(Presentation pres, Slide sld, byte[] wbArray,    byte[] imgChart) throws Exception
{
    com.aspose.slides.Picture pic=new com.aspose.slides.Picture(pres,new ByteArrayInputStream(imgChart));
    int picId = pres.getPictures().add(pic);
    int slideWidth = (int)pres.getSlideSize().getX() - 1500;
    int slideHeight = (int)pres.getSlideSize().getY();
    int x = 1500 / 2;
    OleObjectFrame oof = sld.getShapes().addOleObjectFrame(x, 0, slideWidth, slideHeight, "Excel.Sheet.8", wbArray);
    oof.setPictureId(picId);
}