}
public void updateChart(){
if(myChart == null || sheet == null) return;
ChartModel model = myChart.getModel();
((PieModel)model).clear();
for(int row = 45; row < 53; row++){
Cell cellName = Utils.getCell(sheet, row, 0);
String name;
if(cellName == null || cellName.getStringCellValue() == null)