OPML

Outline Processor Markup LanguageThe purpose of OPML is to provide a way to exchange information between outliners and Internet services that can be browsed or controlled through an outliner.The design goal is to have a transparently simple, self-documenting, extensible and human readable format that's capable of representing a wide variety of data that's easily browsed and edited. As the format evolves this goal will be preserved. It should be possible for a reasonably technical person to fully understand the format with a quick read of a single Web page.It's an open format, meaning that other outliner vendors and service developers are free to use the format to be compatible with Radio UserLand or for any other purpose.

---

Access the specification ...