Home : File Types : OPML File

.OPML File Extension

File TypeOutline Processor Markup Language File

DeveloperThe Omni Group
3.7 (7 Votes)
CategoryWeb Files


This file is saved in an XML format. You can view the XML structure and contents of the file in a text editor.

What is an OPML file?

Outline document written in OPML (Outline Processor Markup Language); used to exchange lists of Web feeds (such as .RSS files) between Web feed aggregators; also used for other general outlining purposes.

More Information

Each OPML file contains the following XML elements:

  1. OPML version - e.g. "1.0"
  2. Head - contains metadata that describes the content
  3. Body - contains the content of the outline
  4. Outline - contains a line in the outline
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Programs that open OPML files
CS Odessa ConceptDraw MINDMAP
OPML Editor
Natara Bonsai
The Omni Group OmniOutliner 4.5
CS Odessa ConceptDraw MINDMAP
OPML Editor
Circus Ponies NoteBook
Updated 3/18/2016

About the file extension opml

Our goal is to help you understand what a file with a *.opml suffix is and how to open it.

The Outline Processor Markup Language file type, file format description, and Mac and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and do not publish any information we have not been able to verify.

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