Notes about the SGML file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The SGML file type is primarily associated with 'Standard Generalized Markup Language'. The Standard Generalized Markup Language (ISO 8879:1986 SGML) is an ISO Standard metalanguage in which one can define markup languages for documents. SGML is a descendant of IBM's Generalized Markup Language (GML), developed in the 1960s by Charles Goldfarb, Edward Mosher and Raymond Lorie (whose surname initials were used by Goldfarb to make up the term GML).
Detailed information for file extension SGML:
Primary association: Standard Generalized Markup Language
Mime type: text/sgml
Other applications associated with file type SGML:
- Encoded Archival Description Document by The Library of CongressEncoded Archival Description is an XML standard for encoding archival finding aids, maintained by the Library of Congress in partnership with the Society of American Archivists. EAD 1.0 was an SGML DTD; EAD 2002, the second and current incarnation of EAD, was finalized in December 2002 and is an XML DTD. This association is classified as XML. The identifying characters used for this association are - Hex: 3C 21 44 4F 43 54 59 50 45 20 , ASCII: !DOCTYPE Related links: Wikipedia EAD Page
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database
To change file associations press Windows Key
and then Apps and Features
> Default apps
> Choose default apps by file type
Invalid file associations could be the result of underlying issues within your Windows PC.