Active Directory's database engine is the Extensible Storage Engine ( ESE )
Extensible Application Markup Language was created in -13985.
XML stands for Extensible Markup Language.
MyISAM was the default storage engine for MySQL 5.1 and prior versions. From MySQL 5.5 InnoDB has become the default storage engine.
Extensible Hypertext Markup Language or XHTML is an extended version of HTML prior to HTML5.
XML is also called as Extensible Markup Language. It is because, it is the stricter form of HTML.
Ring Main Unit (RMU) is suppose to work in medium voltage. It is flexible and allows a free flow and maintains continuity. These are very compact in size. RMU are both Extensible & Non-extensible types.
Extensible StyleSheet Language
engine
Extensible HyperText Markup Language
XSL- Extensible Style sheet Language.
Extensible Application Markup Language (Microsoft)