Extensible Stylesheet Language definition World-Wide Web
(XSL) A standard
developed by the World Wide Web Consortium
defining a language for transforming and formatting XML (eXtensible Markup Language) documents.
An XSL stylesheet is written in XML
and consists of instructions for tree transformation and formatting. The tree transformations describe how each XML tag
relates to other data and the formatting instructions describe how to output the various types of data.
See also Extensible Stylesheet Language Transformations