ONE File Extension

What is ONE file?

ONE filename suffix is mostly used for OneNote Document files. Microsoft defined the OneNote Document format standard. ONE files are supported by software applications available for devices running Windows. Files with ONE extension are categorized as Data Files files. The Data Files subset comprises 1326 various file formats. The most popular program for handling ONE files is Microsoft OneNote, but users can choose among 2 different programs that support this file format. Software named Microsoft OneNote was created by Microsoft Corporation. In order to find more detailed information on the software and ONE files, check the developer’s official website.

Programs which support ONE file extension

Below is a table that list programs that support ONE files. ONE files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with ONE extension?

Problems with accessing ONE may be due to various reasons. Fortunately, most common problems with ONE files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Get the Microsoft OneNote

The main and most frequent cause precluding users form opening ONE files is that no program that can handle ONE files is installed on user’s system. This one is an easy one. Select Microsoft OneNote or one of the recommended programs (for example, Microsoft Office, Office 365) and download it from appropriate source and install on your system. The full list of programs grouped by operating systems can be found above. One of the most risk-free method of downloading software is using links provided by official distributors. Visit Microsoft OneNote website and download the installer.

Step 2. Update Microsoft OneNote to the latest version

If the problems with opening ONE files still occur even after installing Microsoft OneNote, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Microsoft OneNote is available. Software developers may implement support for more modern file formats in updated versions of their products. The reason that Microsoft OneNote cannot handle files with ONE may be that the software is outdated. The most recent version of Microsoft OneNote is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open ONE files to Microsoft OneNote

If you have the latest version of Microsoft OneNote installed and the problem persists, select it as the default program to be used to manage ONE on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Selecting the first-choice application in Windows

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the ONE file
• Select Choose another app → More apps
• To finalize the process, select Look for another app on this PC entry and using the file explorer select the Microsoft OneNote installation folder. Confirm by checking Always use this app to open ONE files box and clicking OK button.

Selecting the first-choice application in Mac OS

• By clicking right mouse button on the selected ONE file open the file menu and choose Information
• Open the Open with section by clicking its name
• From the list choose the appropriate program and confirm by clicking Change for all....
• A message window should appear informing that This change will be applied to all files with ONE extension. By clicking Continue you confirm your selection.

Step 4. Check the ONE for errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper ONE file. It is probable that the file is corrupted and thus cannot be accessed.

1. Check the ONE file for viruses or malware

Should it happed that the ONE is infected with a virus, this may be that cause that prevents you from accessing it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the ONE file is indeed infected follow the instructions below.

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

Did you receive the ONE file in question from a different person? Ask him/her to send it one more time. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. If the ONE file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Make sure that the system has sufficient resources to run Microsoft OneNote

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

5. Check if you have the latest updates to the operating system and drivers

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with OneNote Document files. It may be the case that the ONE files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the ONE 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 ONE file.