@Test
    public void testEmbeddedStorageId() throws Exception {

        List<Metadata> list = getRecursiveMetadata("testWORD_embeded.doc");
        //.docx
        assertEquals("{F4754C9B-64F5-4B40-8AF4-679732AC0607}",
                list.get(10).get(Office.EMBEDDED_STORAGE_CLASS_ID));
        //_1345471035.ppt
        assertEquals("{64818D10-4F9B-11CF-86EA-00AA00B929E8}",
                list.get(14).get(Office.EMBEDDED_STORAGE_CLASS_ID));
        //_1345470949.xls
        assertEquals("{00020820-0000-0000-C000-000000000046}",
                list.get(16).get(Office.EMBEDDED_STORAGE_CLASS_ID));

    }
Office files with embedded images, but no other
office files in them
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/test/java/org/apache/tika/parser/microsoft/POIContainerExtractionTest.java