@Test
    public void testEmbeddedXLSInOLEObject() throws Exception {
        List<Metadata> metadataList = getRecursiveMetadata("testPPT_oleWorkbook.ppt");
        assertEquals(3, metadataList.size());
        Metadata xlsx = metadataList.get(1);
        assertContains("<h1>Sheet1</h1>", xlsx.get(TikaCoreProperties.TIKA_CONTENT));
        assertContains("<td>1</td>", xlsx.get(TikaCoreProperties.TIKA_CONTENT));
        assertEquals("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
                xlsx.get(Metadata.CONTENT_TYPE));

    }
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/PowerPointParserTest.java