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Informations about the OPML filename extension and the file formats associated with it

We collected the information you should know about the .opml filename on this page. If you were sent a(n) .opml file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.opml - Outline Processor Markup Language File

The OPML file is a Document file, which is connected to the Outline Processor Markup Language File according to our registry. With the adequate settings, the Outline Processor Markup Language File (.opml) files can be opened or converted with the help of OPML Editor.

Format description:
OPML format
OPML Editor
Magic string:
- / -
Related links:
OPML on Wikipedia
Related extensions:
OpenOffice Calc Template
Nero MP3 CD Compilation
Lightweight Markup Language Text
Capella XML Music Score
ExamView Online Test Data
GeoGebra Document

Important! Programs other than the ones listed above may also use the .opml file extension. Even harmful programs can create files with the .opml extension to store data in them. Always be careful with .opml files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .opml file can’t be opened on your computer?

If the program necessary for opening the .opml file is installed properly on your computer, then the quickest and simplest way to open the .opml file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .opml file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .opml extension

The .opml filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .opml files.

oml, opl, pml

Maybe you’re not even looking for the .opml file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .opml extension. It’s possible that the one you’re looking for is among them.

TracePro Model
OtsAV Media Library
OpenPanorama Lensflare File
Windows NT Performance Monitor Log
Palm Markup Language File

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

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We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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