.OPML File Extension

Outline Processor Markup Language File

Developer The Omni Group
3.5  |  26 Votes

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
Open over 400 file formats with File Viewer Plus.Free Download

Programs that open OPML files

Category: Web Files
Updated: September 13, 2019

Verified by FileInfo.com

The FileInfo.com team has independently researched the Outline Processor Markup Language file format and Mac and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.