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*Details: File format summary



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Name OPML File
Version 1.*
Other names  
Identifiers PUID:  fmt/1882
Classification Text (Mark-up)
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.
Byte order  
Related file formats Has priority over Extensible Markup Language (1.0)
Technical Environment  
Supported until  
Format Risk  
Developed by /
Supported by /
Source Digital Preservation Department / The National Archives
Source date 06 Jul 2023
Source description  
Last updated 06 Jul 2023
Note Specification:
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