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.
(https://w3.org/Style/XSL/).
See also
Extensible Stylesheet Language Transformations.
(2005-09-30)