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OPML Outline Processor Markup Language file format
File type: Text file, Internet related file
Files with opml extension are written in the Outline Processor Markup Language. Used for numerous purposes, most notably in RSS environment.
File type category:
Text file
Internet related file
Date updated: November 7, 2024
File extension opml is associated with OPML (Outline Processor Markup Language). OPML an XML-based format that allows exchange of outline-structured information between applications running on different operating systems and environments.
It is used to exchange subscription lists between programs that read RSS files, such as feed readers and aggregators.
A typical .opml file contains data formatted in the outline processor markup language.
MIME types used for opml files:
application/xml
text/xml
text/x-opml
As far as we know, the code from .opml files can be viewed and edited in any text editor. However, to process these files you will need as special tool.
Used as exchange format between all kinds of different software, from mindmaps to RSS.
Software applications that can open opml files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
Multiplatform
Software applications that can edit opml files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
Software capable of saving opml files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
Software apps that import opml files:
Microsoft Windows
Apple macOS / Mac OS X
Multiplatform
Software apps that export opml files:
Microsoft Windows
Apple macOS / Mac OS X
Multiplatform
Software applications that handle other tasks involving opml files:
Apple macOS / Mac OS X