docs: private static Map<String, PictureData> getPicMapXls(HSSFWorkbook workbook, int sheetIndex) {
  		final Map<String, PictureData> picMap = new HashMap<>();
  		final List<HSSFPictureData> pictures = workbook.getAllPictures();
  		if (CollectionUtil.isNotEmpty(pictures)) {
  			final HSSFSheet sheet = workbook.getSheetAt(sheetIndex);
  			HSSFClientAnchor anchor;
  			int pictureIndex;
  			for (HSSFShape shape : sheet.getDrawingPatriarch().getChildren()) {
  				if (shape instanceof HSSFPicture) {
  					pictureIndex = ((HSSFPicture) shape).getPictureIndex() - 1;
  					anchor = (HSSFClientAnchor) shape.getAnchor();
  					picMap.put(StrUtil.format("{}_{}", anchor.getRow1(), anchor.getCol1()), pictures.get(pictureIndex));
  				}
  			}
  		}
  		return picMap;
  	}