@Override
            public void extract(Context ctx) throws IOException, SAXException {
                ctx.in.readWPShort(); // column
                ctx.in.readWPLong();  // row
                ctx.in.readWPLong();  // flag
                ctx.xhtml.characters(getQstrLabel(ctx.in));  // author name
                ctx.xhtml.characters(getQstrLabel(ctx.in));  // comment
            }
Extracts text from a Quattro Pro document according to QPW v9 File Format.
This format appears to be compatible with more recent versions too.

@author Pascal Essiembre
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-miscoffice-module/src/main/java/org/apache/tika/parser/wordperfect/QPWTextExtractor.java