public int setCellValue(int sheet, int RowIndex, int CellIndex, String value) { if (FileType.getFileType() == 1) { excel_xls.setCellValue(sheet, RowIndex, CellIndex, value); } else if (FileType.getFileType() == 2) { excel_xlsx.setCellValue(sheet, RowIndex, CellIndex, value); } return -1; }