File Type Outline Processor Markup Language File IconOutline Processor Markup Language File
File Format Standard (developed by The Omni Group)
Usage Open manually; may be referenced by an application
Rank ★ ★ ★  Common

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.

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 With

IconCS Odessa ConceptDraw MINDMAP

IconOPML Editor



IconThe Omni Group OmniOutliner

IconCS Odessa ConceptDraw MINDMAP

IconOPML Editor

Updated 2007