.opml OPML syndication feed
Text & source code
| MIME type | text/x-opml+xml |
|---|---|
| Description | OPML syndication feed |
| Acronym | OPML – Outline Processor Markup Language |
| Category | Text & source code |
| Signature (magic bytes) | 3C 6F 70 6D 6C 20 (<opml ) |
| Based on | application/xml |
Frequently asked questions
What is a .opml file?
A .opml file is a “OPML syndication feed” (MIME type text/x-opml+xml). OPML stands for Outline Processor Markup Language.
How do I open a .opml file?
With any text editor – Notepad++, Visual Studio Code, or gedit and vim on Linux. The file contains readable text, possibly source code or configuration.
How can you tell a genuine .opml file?
By the bytes at the start of the file, the signature (magic bytes): 3C 6F 70 6D 6C 20 (<opml ). On Linux and macOS, file --mime-type example.opml checks the real type regardless of the extension.
Which format is .opml based on?
Technically a .opml file is a subtype of “XML document” (application/xml), so programs for that base format can often read it too.
Which MIME type belongs to .opml?
The MIME type is text/x-opml+xml. In the Apache web server: AddType text/x-opml+xml .opml; in nginx: types { text/x-opml+xml opml; }.