OPML File Documentation

Overview

Feature Value
File Extension .opml
MIME Type text/x-opml
Developed by UserLand Software
Format Type XML
Primary Use Outlining
Character Encoding UTF-8
Root Element <opml version="2.0">
Main Child Element <body>
Version Attribute Yes
Outline Element <outline>
Attributes of <outline> text, type, isBreakpoint, etc.
Head Section For metadata such as title, dateCreated, ownerName
Expanding/Collapsing Supported via attributes
Compatibility Widely supported by outlining, content management, and feed reader software
Usage Examples RSS feed lists, project plans, organization charts
Nesting Unlimited depth
XML Declaration Optional
Specification URL OPML Version 2.0 Specification
Attachment Support No