OPML File 2
Writablemarkup
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.
Identify it
| Extensions | .opml |
|---|---|
| MIME types | application/xmltext/x-opmltext/x-opml+xmltext/xml |
| PRONOM | fmt/1883 |
| Wikidata | Q836370 |
| Library of Congress | fdd000554 |
Not sure your file is this? Identify it from its first bytes, in your browser.
Open it
Convert it
| To | With | Fidelity | Command and losses |
|---|---|---|---|
| ePub Format | Pandoc | Partial | pandoc -f opml -t epub in.opml -o out.epubDocument structure is kept; layout, styles and unsupported elements are lost. |
| Hypertext Markup Language | Pandoc | Partial | pandoc -f opml -t html in.opml -o out.htmlDocument structure is kept; layout, styles and unsupported elements are lost. |
| Markdown | Pandoc | Partial | pandoc -f opml -t markdown in.opml -o out.mdDocument structure is kept; layout, styles and unsupported elements are lost. |
| Office Open XML Wordprocessing Document, ECMA-376 1st Edition | Pandoc | Partial | pandoc -f opml -t docx in.opml -o out.docxDocument structure is kept; layout, styles and unsupported elements are lost. |
| OpenDocument | Pandoc | Partial | pandoc -f opml -t odt in.opml -o out.odtDocument structure is kept; layout, styles and unsupported elements are lost. |
| Plain Text File | Pandoc | Partial | pandoc -f opml -t plain in.opml -o out.txtText only: all formatting is dropped. |
Sources
From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.