How to open Microsoft OneNote document .one files
Have you had trouble opening the one file on your computer? What are one files? We explain what they are and recommend software that we know will open them.
What is one file?
Files with one extension can be found as data files from OneNote, a personal information management program from the Microsoft Office suite. The .one file can contain various types of information, such as text notes, images, video clips, etc.
Microsoft OneNote document description
File extension one is associated with Microsoft OneNote, an easy-to-use note-taking and information-management program in the Microsoft Office system from version 2007, with which you can capture your thoughts and ideas in electronic notebooks, where you can easily organize, search, and share them.
The one files contain mainly saved text notes but may also include objects pasted from other applications, such as images, drawings, or audio/video clips.
MIME-type used for OneNote *.one files:
application/onenote
Suggested software to open one file

Microsoft OneNote
Microsoft OneNote is application used to create short notes distributed with Microsoft Office suite

Office 365
Subscription-based service for Microsoft Office applications

Microsoft OneNote for Mac
Digital notebook app for Mac OS X
There are other ONE filename extensions with the same .one suffix
one - docPointer visual readme document
Files with one file extension can also be found as readme files for docPointer program.
one - EdgeCAM licensing data file
Files with one extension might also be found as license data for EdgeCAM program.