@Test
    public void testBigIntegersWGeneralFormat() throws Exception {
        //TIKA-2025
        String xml = getXML("testEXCEL_big_numbers.xls").xml;
        assertContains("123456789012345", xml);//15 digit number
        assertContains("123456789012346", xml);//15 digit formula
        Locale locale = LocaleUtil.getUserLocale();
        DecimalFormatSymbols symbols = new DecimalFormatSymbols(locale);
        //16 digit number is treated as scientific notation as is the 16 digit formula
        assertContains("1" + symbols.getDecimalSeparator() + "23456789012345E+15</td>\t" + "<td>1" +
                symbols.getDecimalSeparator() + "23456789012345E+15", xml);
    }
Ensures that custom OLE2 (HPSF) properties are extracted
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/test/java/org/apache/tika/parser/microsoft/ExcelParserTest.java