public static boolean customHeight(Row row) {
        if (row instanceof XSSFRow) {
            XSSFRow xssfRow = (XSSFRow)row;
            return xssfRow.getCTRow().getCustomHeight();
        }
        if (row instanceof HSSFRow) {
            HSSFRow hssfRow = (HSSFRow)row;
            try {
                RowRecord record = (RowRecord)ROW_RECORD_FIELD.get(hssfRow);
                return CUSTOM_HEIGHT.getValue(record.getOptionFlags()) == 1;
            } catch (IllegalAccessException ignore) {
            }
        }
        return false;
    }
Whether to customize the height

@param row row
@return
fastexcel-core/src/main/java/cn/idev/excel/util/PoiUtils.java