SVG was also accommodated in MPEG-4 Part 11, in the Extensible MPEG-4 Textual ( XMT ) format-a textual representation of the MPEG-4 multimedia content using XML.

* Extensible MPEG-4 Textual Format, an XML-based file format for storing MPEG-4 data in a way suitable for further editing

* the Extensible MPEG-4 Textual ( XMT ) format-a textual representation of the multimedia content described in MPEG-4 using the Extensible Markup Language ( XML );

In computing, the Executable and Linkable Format ( ELF, formerly called Extensible Linking Format ) is a common standard file format for executables, object code, shared libraries, and core dumps.

The markup can be converted to HTML, Portable Document Format | PDF and Rich Text Format using a programming language or Extensible Stylesheet Language | XSL.

* Microsoft Extensible Firmware Initiative FAT32 File System Specification, FAT: General Overview of On-Disk Format

* RFC 6122, Extensible Messaging and Presence Protocol ( XMPP ): Address Format describes the rules for XMPP addresses, also called JabberIDs or JIDs.

The project was announced on 6 December 2002 as a fork of the Multimedia Container Format ( MCF ), after disagreements between MCF lead developer Lasse Kärkkäinen and soon-to-be Matroska founder Steve Lhomme about the use of the Extensible Binary Meta Language ( EBML ) instead of a binary format.

The Extensible Data Format ( XDF ) is an XML standard ( specified as a DTD ) developed by NASA, meant to be used throughout scientific disciplines.

* Extensible Data Format

* RFC 3464-An Extensible Message Format for Delivery Status Notifications

XMF ( Extensible Music Format ) is a tree-based digital container format used to bundle music-oriented content, such as a MIDI file and optionally the sounds it uses, liner notes or other content grouped by language-codes.

An Extensible Message Format for Delivery Status Notifications.

* XMF ( Extensible Music Format )

As of 2011, the BIOS is being replaced by the more complex Extensible Firmware Interface ( EFI ) in many new machines, but BIOS remains in widespread use.

XML ( Extensible Markup Language ) is a meta markup language that is now widely used.

Synchronized Multimedia Integration Language ( SMIL, ) is a World Wide Web Consortium recommended Extensible Markup Language ( XML ) markup language to describe multimedia presentations.

In computing, the term Extensible Stylesheet Language ( XSL ) is used to refer to a family of

* Sometimes it refers to XSL-FO: this usage can be justified by the fact that the XSL-FO specification carries the title Extensible Stylesheet Language ( XSL ); however, the term XSL-FO is less likely to be misunderstood

XSLT ( Extensible Stylesheet Language Transformations ) is a language for transforming XML documents into other XML documents, or other objects such as HTML for web pages, plain text or into XSL Formatting Objects which can then be converted to PDF, PostScript and PNG.

The Extensible Firmware Interface ( EFI ) specification states that PE is the standard executable format in EFI environments.

The XML Metadata Interchange ( XMI ) is an Object Management Group ( OMG ) standard for exchanging metadata information via Extensible Markup Language ( XML ).

Universal Description, Discovery and Integration ( UDDI, pronounced Yu-diː ) is a platform-independent, Extensible Markup Language ( XML )- based registry by which businesses worldwide can list themselves on the Internet, and a mechanism to register and locate web service applications.

Extensible Messaging and Presence Protocol ( XMPP ) is a communications protocol for message-oriented middleware based on XML ( Extensible Markup Language ).

* XACML-The Extensible Access Control Markup Language together with its Privacy Profile is a standard for expressing privacy policies in a machine-readable language which a software system can use to enforce the policy in enterprise IT systems.

In software, an XML Pipeline is formed when XML ( Extensible Markup Language ) processes, especially XML transformations and XML validations, are connected.

IEEE 802. 1X defines the encapsulation of the Extensible Authentication Protocol ( EAP ) over IEEE 802 which is known as " EAP over LAN " or EAPOL.

Extensible Provisioning Protocol is used for many TLD registries, and uses an authorization code issued exclusively to the domain registrant as a security measure to prevent unauthorized transfers.

In many ways it is akin to XSIL, Extensible Scientific Interchange Language.

XSIL ( Extensible Scientific Interchange Language ) is an XML-based transport language for scientific data, supporting the inclusion of both in-file data and metadata.

An Extensible Authentication Protocol ( EAP ) is used for authentication, which comes in different flavors.

Since Windows XP is incompatible with Extensible Firmware Interface ( the successor to legacy BIOS ), the firmware on early Intel Macs need to be updated to support BIOS emulation first.

XMI is a standard for exchanging metadata information via Extensible Markup Language ( or XML ).

The XML-based XMPP or Extensible Messaging and Presence Protocol was designed and is currently maintained by the XMPP Standards Foundation.

XSL-FO is part of XSL ( Extensible Stylesheet Language ), a set of W3C technologies designed for the transformation and formatting of XML data.

* Extensible Name Service, an XML-based digital identity architecture

There have been several attempts to create a unified standard for instant messaging: IETF's Session Initiation Protocol ( SIP ) and SIP for Instant Messaging and Presence Leveraging Extensions ( SIMPLE ), Application Exchange ( APEX ), Instant Messaging and Presence Protocol ( IMPP ), the open XML-based Extensible Messaging and Presence Protocol ( XMPP ), and Open Mobile Alliance's Instant Messaging and Presence Service developed specifically for mobile devices.

Extensible Application Markup Language ( XAML, ) is a declarative XML-based language created by Microsoft that is used for initializing structured values and objects.

* Extensible to new file formats, effects and other features.

The Extensible Metadata Platform ( XMP ) has largely superseded IIM's image file header structure, but the IIM properties are redefined in the IPTC Core schema and extended by the IPTC Extension schema, both used in XMP.

Extensible Binary Meta Language ( EBML ) is a generalized file format for any kind of data, aiming to be a binary equivalent to XML.