+ executionSemester.getSemester());
HSSFCellStyle normalStyle = spreadsheet.getExcelStyle().getValueStyle();
normalStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
HSSFWorkbook wb = spreadsheet.getWorkbook();
HSSFFont font = wb.createFont();
font.setColor(HSSFColor.BLACK.index);
font.setFontHeightInPoints((short) 8);
HSSFCellStyle redStyle = wb.createCellStyle();
redStyle.setFont(font);
redStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);