What is an OPML File?

How to Open, Edit, & Convert OPML Files

Picture of a round RSS icon

A file with the OPML file extension is an Outline Processor Markup Language file. They're saved in the XML format and are typically used as import/export files for RSS feed reader programs.

The OPML format can hold a collection of RSS subscription information, so it's the ideal format for backing up or sharing RSS feeds.

How To Open an OPML File

Almost any program that manages RSS feeds should be able to import OPML files and export OPML files.

Feedly is one example of a free RSS reader that can import OPML files (you can do it through this Import OPML link).

If you find an OPML file online and would like to see what's in it, there's a tool called OPML Viewer that will do just that. OPML Editor and Tkoutline and can open .OPML files too.

A simple text editor may be another way to open OPML files. If possible, Notepad++ is a good choice.

If you find that an application on your PC does try to open the OPML file but it's the wrong application or if you would rather have another installed program open OPML files, see my How To Change the Default Program for a Specific File Extension guide for making that change in Windows.

How To Convert an OPML File

The Tkouline program mentioned above can be used to convert an OPML file to HTML or XML.

OPML files can also be converted to CSV for use in a spreadsheet program like Microsoft Excel, using this online OPML to CSV converter.

To save the OPML text to JSON, use the free OPML to JSON Converter on BeautifyTools.com.

Pandoc is another OPML converter that can save the XML data from an OPML file to a huge variety of formats like AsciiDoc, markdown, LaTeX, and others.

More Help With OPML Files

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more.

Let me know what kinds of problems you're having with opening or using the OPML file and I'll see what I can do to help.