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Format

Extensible Markup Language

Download XML

Summary

Name
Extensible Markup Language
Version
1.1
Identifiers
  • MIME: text/xml
  • Library of Congress Format Description Identifier: fdd000264
  • PUID: fmt/1776
  • Apple Uniform Type Identifier: public.xml
Format type
Text (Mark-up)
Description
Extensible Markup Language (XML) version 1.1 was developed by World Wide Web Consortium (W3C) in 2004. It is a general purpose markup language for creating other special purpose markup languages, it derived from SGML (ISO 8879). XML 1.1 was designed to be used when features of XML 1.0 [fmt/101] do not permit certain functionalities. It is structured to use any version of Unicode, in basic terms, whereas XML 1.0 provided a rigid definition of names, wherein everything that was not permitted was forbidden, XML 1.1 names are designed so that everything that is not forbidden (for a specific reason) is permitted. It also adds checking of normalization, and follows the Unicode line ending rules more closely. Authors are encouraged to generate XML 1.0 documents if the added flexibility is not required. XML Parsers are expected to understand both XML 1.0 and XML 1.1. It typically begins with an XML declaration, defining the XML version and character set used. This may be followed by a Document Type declaration, containing or pointing to a markup declaration for the class of document. An XML document is said to be well-formed if it conforms to the XML specification; it is said to be valid if it additionally complies with a defined markup declaration. The formatting and transformation of XML documents can be controlled using the Extensible Stylesheet Language (XSL).
Note
https://web.archive.org/web/20220918202300/https://www.w3.org/TR/2006/REC-xml11-20060816/ https://www.loc.gov/preservation/digital/formats/fdd/fdd000264.shtml https://web.archive.org/web/20210517154945/https://developer.apple.com/documentation/uniformtypeidentifiers/uttype/3551601-xml
File extensions
xml
Source
Stadtarchiv Hof / Stadtarchiv Hof
Developed by
World Wide Web Consortium

Relationships

Is subtype of
Is supertype of

Internal signatures

Extensible Markup Language v1.1

Note
BOF; Offset: 0; Magic Bytes: XML header declaration - '<?xml' followed by whitespace character specific to XML file, then either no wildcard characters or up to thirty whitespace characters, then followed by version number. XML 1.1 can incorporate various spaces in its syntax, this possibility has been incorporated to this signature.

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
3
Byte Sequence
3C3F786D6C(20|09|0A|0D){0-1}76657273696F6E{0-1}3D{0-1}(22|27)312E31(22|27)
Endianness
None

Changelog

  • Updated in V114

    Release date
    22 August 2023

    Extensible Markup Language 1.1: Relationship with fmt/101 added and signature tightened to prevent clashes with fmt/92. Submitted by Preservica.

  • Added in V109

    Release date
    1 November 2022

    Extensible Markup Language v1.1: Signature researched and samples provided by Stadtarchiv Hof.

    Extensible Markup Language v1.1: Full entry added. Submitted by Stadtarchiv Hof.