@Test
    public void testEmbeddedOfficeFilesXML() throws Exception {
        ContainerExtractor extractor = new ParserContainerExtractor();
        TrackingHandler handler;

        handler = process("EmbeddedDocument.docx", extractor, false);
        assertTrue(handler.filenames.contains("Microsoft_Office_Excel_97-2003_Worksheet1.bin"));
        assertEquals(2, handler.filenames.size());
    }
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