# XML | ![img \|150](https://upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Extensible_Markup_Language_%28XML%29_logo.svg/320px-Extensible_Markup_Language_%28XML%29_logo.svg.png) | Extensible Markup Language (**XML**) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The World Wide Web Consortium's XML 1.0 Specification of 1998 and several other related specifications—all of them free open standards—define XML. | |-|-| | | wikipedia:: [XML](https://en.wikipedia.org/wiki/XML) | [[XPath]]