Just Solve the File Format Problem - User contributions [en]

Structure Data File

2026-08-21T13:59:14Z

BCaron: link to MOL files

{{FormatInfo
|formattype=electronic
|subcat=Scientific Data formats
|subcat2=Chemical data
|extensions={{ext|sdf}}, {{ext|sd}}
|wikidata={{wikidata|Q28530510}}
|mimetypes=
{{mimetype|chemical/x-mdl-sdfile}}
}}
The '''Structure Data File''' is one of several scientific data file formats known as [[SDF]]. It is a component of the [[CTab]] format for chemical and molecular data originally created by [https://en.wikipedia.org/wiki/MDL_Information_Systems MDL Information Systems (MDL)]. For more detail, see CTab.

== Specification ==

The current maintainer, BIOVIA, a company owned by Dassault Systèmes, publishes a specification for all its chemical table file formats, including SDF: [https://discover.3ds.com/sites/default/files/2020-08/biovia_ctfileformats_2020.pdf CTFile Formats].

== Identification ==

SDF files are a concatenation of [[MOL]] files, each of them separated by a new line and the pattern '$$$$'. Consequently, SDF files end with the hexadecimal pattern '(0D|0A|0D0A)24242424'

== Sample Files ==

* Sample SDF files can be downloaded from the [https://lifechemicals.com/downloads Life Chemicals website] - requires registration to a free account.
* More Sample Files [https://otavachemicals.com/sdf OTAVA chemicals]

Structure Data File

2026-08-20T16:50:51Z

BCaron: EOF identification pattern added

{{FormatInfo
|formattype=electronic
|subcat=Scientific Data formats
|subcat2=Chemical data
|extensions={{ext|sdf}}, {{ext|sd}}
|wikidata={{wikidata|Q28530510}}
|mimetypes=
{{mimetype|chemical/x-mdl-sdfile}}
}}
The '''Structure Data File''' is one of several scientific data file formats known as [[SDF]]. It is a component of the [[CTab]] format for chemical and molecular data originally created by [https://en.wikipedia.org/wiki/MDL_Information_Systems MDL Information Systems (MDL)]. For more detail, see CTab.

== Specification ==

The current maintainer, BIOVIA, a company owned by Dassault Systèmes, publishes a specification for all its chemical table file formats, including SDF: [https://discover.3ds.com/sites/default/files/2020-08/biovia_ctfileformats_2020.pdf CTFile Formats].

== Identification ==

SDF files are a concatenation of MOL files, each of them separated by a new line and the pattern '$$$$'. Consequently, SDF files end with the hexadecimal pattern '(0D|0A|0D0A)24242424'

== Sample Files ==

* Sample SDF files can be downloaded from the [https://lifechemicals.com/downloads Life Chemicals website] - requires registration to a free account.
* More Sample Files [https://otavachemicals.com/sdf OTAVA chemicals]

Structure Data File

2026-08-20T15:47:24Z

BCaron: added identifiers and link to spec

{{FormatInfo
|formattype=electronic
|subcat=Scientific Data formats
|subcat2=Chemical data
|extensions={{ext|sdf}}, {{ext|sd}}
|wikidata={{wikidata|Q28530510}}
|mimetypes=
{{mimetype|chemical/x-mdl-sdfile}}
}}
The '''Structure Data File''' is one of several scientific data file formats known as [[SDF]]. It is a component of the [[CTab]] format for chemical and molecular data originally created by [https://en.wikipedia.org/wiki/MDL_Information_Systems MDL Information Systems (MDL)]. For more detail, see CTab.

== Specification ==

The current maintainer, BIOVIA, a company owned by Dassault Systèmes, publishes a specification for all its chemical table file formats, including SDF: [https://discover.3ds.com/sites/default/files/2020-08/biovia_ctfileformats_2020.pdf CTFile Formats].

== Sample Files ==

* Sample SDF files can be downloaded from the [https://lifechemicals.com/downloads Life Chemicals website] - requires registration to a free account.
* More Sample Files [https://otavachemicals.com/sdf OTAVA chemicals]

Structure Data File

2026-08-20T11:03:13Z

BCaron: added link to Life chemicals for sample files

{{FormatInfo
|formattype=electronic
|subcat=Scientific Data formats
|subcat2=Chemical data
}}
The '''Structure Data File''' is one of several scientific data file formats known as [[SDF]]. It is a component of the [[CTab]] format for chemical and molecular data originally created by MDL. For more detail, see CTab.

== Sample Files ==

* Sample SDF files can be downloaded from the [https://lifechemicals.com/downloads Life Chemicals website] - requires registration to a free account.

ST disk image

2026-07-28T10:22:32Z

BCaron: example emulator: Hatari

{{FormatInfo
|formattype=electronic
|subcat=Disk Image Formats
|extensions={{ext|st}}
}}
'''ST''' (or '''.ST''') is a format used for raw floppy disk image files for Atari computers.

Though other formats are common, ST files typically use the Atari ST style of [[FAT12]], making them pretty much the same as [[IMA]].

== Software ==
* [http://msaconverter.free.fr/ MSA Converter] (Windows application)
* [http://atari.8bitchip.info/floimgd.php Floppy Image v1.02] (Windows binary) can extract files from ST images, awkwardly: (no need to install the driver) "Open image file", "File transfer", select a "Dest Dir", select file(s), "Extract".
* Supported by some Atari emulators (e.g., [https://hatari-emu.org/ Hatari]).
* {{Deark}}

== Sample files ==
* http://www.page6.org/st_lib/st_lib.htm
* http://atari.8bitchip.info/EMPTYFLO.ZIP
* {{DexvertSamples|archive/stDiskImage}}

[[Category:Atari computers]]

Ext:cel

2026-07-24T14:44:02Z

BCaron: Added Affymetrix CEL File

: ''Information for extension '''.cel'''''
=File types=
==Autodesk Animator CEL File Format==
===PRONOM===
* [http://www.nationalarchives.gov.uk/PRONOM/x-fmt/223 x-fmt/223]

----
''Source: [[PRONOM]]''
==Affymetrix CEL File==
===BFFO===
* [https://bffo.org/format/CEL/ CEL]

----
''Source: [https://bffo.org/ Bio File Formats & Ontology]''
=Resources=
* [[Special:Search/cel|Search for 'cel' on this wiki]]
* [http://en.wikipedia.org/wiki/Special:Search/.cel Information about 'cel' on Wikipedia]
* [http://filext.com/file-extension/cel Information about extension '.cel' on FilExt.com]
* [http://www.fileinfo.com/extension/cel Information about extension '.cel' on FileInfo.com]
* [http://www.file-extensions.org/search/?searchstring=cel Information about 'cel' on File-Extensions.org]
* [http://extension.nirsoft.net/cel List of programs that can open '.cel' files on File Extensions Information For Windows website]
* [https://www.google.com/search?as_epq=.cel Search Google for '.cel']
----
: <small>This page has been generated automatically by [[User:Bender|Bender]], edits will be overwritten. For comments, please use [[User_talk:Bender]].</small>
[[category:File Format Extension]]

IDML

2026-07-20T14:09:15Z

BCaron: Added OutDesign to the list of software.

{{FormatInfo
|formattype=electronic
|subcat=Document
|subcat2=Desktop Publishing
|extensions={{ext|idml}}, {{ext|idms}}, {{ext|icma}}, others
|mimetypes={{mimetype|application/vnd.adobe.indesign-idml-package}}
|pronom={{PRONOM|fmt/1184}}
|released=2008
}}
'''IDML''' ('''InDesign Markup Language''') is an [[XML]]-based data format associated with Adobe's [[InDesign]] desktop publishing software.

''IDML'' also refers to the IDML-based '''.IDML''' ('''IDML export''', or '''InDesign Markup''') document format, which uses a [[ZIP]] container. IDML export format is intended to be more portable than the native [[INDD]] format. It is the successor to [[InDesign INX|INX]].

''IDML'' might also refer to the whole family of IDML-based formats, which includes '''.IDMS''' (Snippets), '''.ICMA''' (InCopy assignment), and others.

== Identification ==
.IDML files normally have ASCII "{{magic|mimetypeapplication/vnd.adobe.indesign-idml-package}}" at offset 30.

== Specifications ==
* [http://wwwimages.adobe.com/content/dam/acom/en/devnet/indesign/sdk/cs6/idml/idml-specification.pdf IDML File Format Specification]
* [http://wwwimages.adobe.com/content/dam/acom/en/devnet/indesign/sdk/cs6/idml/idml-cookbook.pdf Adobe IDML Cookbook]

== Software ==
* [https://www.adobe.com/products/indesign.html InDesign]
* [[Scribus]]
* [https://pypi.python.org/pypi/SimpleIDML SimpleIDML]
* [https://codeberg.org/outdesign/idml2docbook OutDesign], a project that converts IDML files to DocBook, which can in turn be converted to multiple file formats by [http://johnmacfarlane.net/pandoc/ Pandoc]. Its main use case is book publishing and therefore specifically targets text content, so graphic elements might not be well rendered.

[[Category:Adobe]]
[[Category:XML based file formats]]
[[Category:ZIP based file formats]]

SPC (Audio)

2025-04-15T15:03:56Z

BCaron:

{{FormatInfo
|formattype=electronic
|subcat=Audio and Music
|extensions={{ext|rsn}}, {{ext|spc}}
}}
:''This article is about the audio format. For the Atari graphics format, see [[Spectrum 512 formats]]. For the certificate format, see [[PKCS7 certificate]].''

== Description ==
SPC is an audio file format designed for playback of native audio from the Super Famicom / Super Nintendo Entertainment System. SPC files commonly have the extension '''.spc'''.

== Information ==
The format generally consists of four main sections - a file header; a section containing SPC700 register data; an [[ID666]] tag in either text or binary format, containing metadata about the file; and a final section containing RAM and DSP register data. In addition, there may be a fifth section containing [[Extended ID666]] tag data.

There is also a packed / grouped format for SPC files, where groups of files are packed as a solid archive using [[RAR]]. This commonly uses the extension '''.rsn''' (RAR Super Nintendo)

* [http://wiki.superfamicom.org/snes/show/SPC+and+RSN+File+Format SPC and RSN File Format in SNES Development]

== Software ==
* [http://snesmusic.org/v2/players.php SPC Players and Tools]

== Sample files ==
* {{DexvertSamples|music/spc}}

== Links ==
* [http://snesmusic.org/v2/ SNESMusic.org]
* [https://www.vgmpf.com/Wiki/index.php?title=SPC Video Game Music Preservation Foundation]

SPC (Audio)

2025-04-15T15:02:35Z

BCaron: Added a link to the Video Game Music Preservation Foundation wiki