Files with osn suffix can be found as special data interchange text files (UTF-8) in Open Symbolic Notation format.

Detailed description

Software that works with osn file extension

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OSN file extension - Open Symbolic Notation file

What is osn file? How to open osn files?

File type specification:

Text file type icon Text file type

osn file icon: osn filetype icon

File extension osn is mainly related to Open Symbolic Notation, abbreviated OSN, an easy and flexible data-interchange text format intended for the lightweight representation of generic abstract syntax trees in the domain of formal languages. It is based on qualified symbolic expressions.

These .osn files are text files using the UTF-8 encoding.

The default software associated to osn file type:

Sublime Text icon

Sublime Text  Microsoft Windows software

Company or developer:
  Sublime HQ Pty Ltd

Sublime Text is advanced text editor used to write source codes in various programming languages. It is a great tool for programmers and offers great feature and performance. It is available for Microsoft Windows, Mac OS X and Linux operating systems.

Help how to open OSN files:

You can most likely view or edit these files using any text editor.

How to convert file with extension OSN:

Currently there is no specific information available, about how to convert this file extension.

For general information try to look at:
Basic info how to convert text files

Related links:

Open Symbolic Notation website

List of software applications associated to the .osn file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open osn file, edit osn file, convert osn file, view osn file, play osn file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting of the osn files.

  • Open osn file
  • Save osn file
  • Edit osn file

Software that open osn file - Open Symbolic Notation file

Click on the link to get more information about listed programs for open osn file action.

Microsoft Windows:

Main software associated with osn file by default:
Sublime Text small icon Sublime Text
Other suggested software:
NotePad++ text editor small icon NotePad++ text editor

Apple macOS / Mac OS X:

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