Details: File format summary

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Properties

Summary
Name	OPML File
Version	1.*
Other names
Identifiers	PUID: fmt/1882
Family
Classification	Text (Mark-up)
Disclosure
Description	OPML (Outline Processor Markup Language) files are an XML format developed to enable exchange of lists of internet web feeds (e.g. RSS feeds) between between different web feed aggregators, regardless of their operating system. OPML files have <opml version="x"> near the start, then contents mainly divided into <head> and <body> sections. It was developed in the early 2000s, and is still commonly used for backing up or sharing RSS feeds.
Orientation
Byte order
Related file formats	Has priority over Extensible Markup Language (1.0)
Technical Environment
Released
Supported until
Format Risk
Developed by	opml.org / opml.org
Supported by	opml.org / opml.org
Source	Digital Preservation Department / The National Archives
Source date	06 Jul 2023
Source description
Last updated	06 Jul 2023
Note	Specification: https://web.archive.org/web/20160304125338/http://dev.opml.org/spec1.htm