For example, there is a long sentence in Cell A1, see the following screenshot. And now you need to find the 3rd occurrence or position of Character c from the text string in Cell A1. Of course, you can count the characters one by one, and get the exact position result.
XPath, the XML Path Language, is a query language for selecting nodes from an XML document.
XP (Extreme Programming) is a more radical agile methodology, focusing more on the software engineering process and addressing the analysis, development and test phases with novel approaches that make a substantial difference to the quality of the end product.