OSN file icon

OSN File Extension

Open Symbolic Notation Data Format

What is OSN file?

Full format name of files that use OSN extension is Open Symbolic Notation Data Format. OSN files are supported by software applications available for devices running Linux, Mac OS, Windows. Files with OSN extension are categorized as Text Files files. The Text Files subset comprises 440 various file formats. The most popular program for handling OSN files is Sublime Text, but users can choose among 4 different programs that support this file format. On the official website of Sublime HQ Pty Ltd developer not only will you find detailed information about theSublime Text software, but also about OSN and other supported file formats.

Programs which support OSN file extension

The list that follows enumerates programs compatible with OSN files, divided into 3 categories based on operating system on which they are available. OSN files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support OSN file

Updated: 01/23/2020

How to open file with OSN extension?

Being unable to open files with OSN extension can be have various origins. On the bright side, the most encountered issues pertaining to Open Symbolic Notation Data Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. We have prepared a listing of which will help you resolve your problems with OSN files.

Step 1. Install Sublime Text software

Install software to open OSN file The most common reason for such problems is the lack of proper applications that supports OSN files installed on the system. This one is an easy one. Select Sublime Text or one of the recommended programs (for example, TextEdit, NotePad++ text editor) and download it from appropriate source and install on your system. Above you will find a complete listing of programs that support OSN files, classified according to system platforms for which they are available. The safest method of downloading Sublime Text installed is by going to developer’s website (Sublime HQ Pty Ltd) and downloading the software using provided links.

Step 2. Update Sublime Text to the latest version

Update software that support file extension OSNYou still cannot access OSN files although Sublime Text is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. If you have an older version of Sublime Text installed, it may not support OSN format. The latest version of Sublime Text should support all file formats that where compatible with older versions of the software.

Step 3. Set the default application to open OSN files to Sublime Text

If you have the latest version of Sublime Text installed and the problem persists, select it as the default program to be used to manage OSN on your device. The method is quite simple and varies little across operating systems.

Associate software with OSN file on Windows

The procedure to change the default program in Windows

  • Clicking the OSN with right mouse button will bring a menu from which you should select the Open with option
  • Select Choose another app → More apps
  • Finally select Look for another app on this PC, point to the folder where Sublime Text is installed, check the Always use this app to open OSN files box and conform your selection by clicking OK button
Associate software with OSN file on Mac

The procedure to change the default program in Mac OS

  • Right-click the OSN file and select Information
  • Find the Open with option – click the title if its hidden
  • Select the appropriate software and save your settings by clicking Change all
  • Finally, a This change will be applied to all files with OSN extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Verify that the OSN is not faulty

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the OSN file in question. Being unable to access the file can be related to various issues.

Check OSN file for viruses
1. Verify that the OSN in question is not infected with a computer virus

If the OSN is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the OSN file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Ensure the file with OSN extension is complete and error-free

If the OSN file was sent to you by someone else, ask this person to resend the file to you. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. If the OSN file has been downloaded from the internet only partially, try to redownload it.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative privileges. Log in using an administrative account and see If this solves the problem.

4. Verify that your device fulfills the requirements to be able to open Sublime Text

The operating systems may note enough free resources to run the application that support OSN files. Close all running programs and try opening the OSN file.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Open Symbolic Notation Data Format files. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle OSN files.

Do you want to help?

If you have additional information about the OSN file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on OSN file.

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