@Override
        public void characters(char[] ch, int start, int length) throws SAXException {
            if (inText) {
                sb.append(ch, start, length);
            }
        }
Captures information on interesting tags, whilst
delegating the main work to the formatting handler
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/main/java/org/apache/tika/parser/microsoft/ooxml/XSSFExcelExtractorDecorator.java