Open ONE files

Full name

Microsoft OneNote Document Format
Developer

Microsoft
Popularity

Have you encountered a problem with a ONE file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a ONE file here. In the further part of this page we have added a list of programs that should open your ONE file. It is enough you choose a proper application for your operating system, download and install it.

Programs which can open a ONE file

Windows

How to open file with ONE extension?

In order to open a file with ONE extension one of the following programs must be installed on user’s system. If a problem with opening ONE file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with ONE files, follow the instructions below.

Install Microsoft OneNote or other program from the list

Most often resolving problems with opening ONE files is very simple. Just install an appropriate program that supports such files. All of the listed programs support ONE files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of ONE files or offer file conversion options, but may not be capable of editing such files.

Set Microsoft OneNote as the default program for opening ONE files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate ONE files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Microsoft OneNote applications is not on the list, select "Browse" option in order to manually locate the directory where Microsoft OneNote has been installed.

Check the section that lists most common problems with ONE files

Sometimes problems with opening ONE files may not lie with the application itself, but can arise due to other causes, such as:

File data is corrupted
ONE files has been not been completely download from the internet (only a part of the data has been downloaded)
Currently used user account hasn’t been granted necessary privileges to open ONE files (should that be the case, please contact your system administrator or IT specialist)
ONE file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)