File Extension Database

Open ONE File

An ONE extension file is a document created by OneNote, a note-taking program developed by Microsoft.

About OneNote

Microsoft OneNote is a handy web app for taking notes, making lists, and jotting down anything you don't want to miss.

You can download it for free on any device, be it mobile or desktop, and consult it in the cloud at any time.

OneNote is part of the Office programs.

It is an application that allows, in a very simple way, to organize notes by subject.

It does so by creating Notepads, which are like notebooks or notebooks made up of one or more notes, which you can group into sections.

Each of these sections opens an editor for you to create your notes and can add images, links, lists, and tags to them.

Contains one or more sections made up of one or more pages of content.

The ONE file is the main file type associated with OneNote.

ONE files can contain text, digitized writing, and objects pasted from other applications, such as images, drawings, and audio/video clips.

When you create a new notebook in the program, it creates a ONE file that is automatically saved as you work.

When you open a ONE file, the interface presents a page where you can insert text, images, drawings, shapes, tables, and links.

You can also choose to sync your ONE files to the cloud to keep them up to date across all your devices.

OneNote is also available for macOS, Windows Phone, Android, and iOS.

Software to open and work with a ONE file

Microsoft OneNote

Typical ONE application file locations:

C:\Program Files (x86)\Microsoft Office\Office12\ONENOTE.EXE "%1"
"C:\Program Files\Microsoft Office\Office14\ONENOTE.EXE" "%1"

Typical ONE mime types:

application/msonenote

Frequently used application names to open ONE files:

Microsoft Office
Microsoft Office - Office14

Frequently associated Windows objects:

OneNote.Section.1

How Can I Open ONE File on Windows

We researched and learned that the best way to open ONE file is to find a ONE file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a ONE file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open ONE file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as ONE file opener then try to search online for "ONE viewer", "application to open ONE file" or "open ONE file" queries in the search engine you like.
Install the application you found and check if it can open ONE file

How Can I Open ONE File on Mac OS

We recommend to find a ONE file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a ONE file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with ONE file.
If you know the Mac OS application which can work as ONE file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open ONE file in it.
If you don't know the application which can open ONE file then try to search for "ONE viewer", "application to open ONE file" or "read ONE file" queries in the online search engine you like.
Install the application you found and check if it can read ONE file

How Can I Open ONE File on Android

If you downloaded a ONE file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded ONE file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "ONE".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "ONE viewer", "ONE file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open ONE File on iPhone or iPad

To open ONE File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the ONE file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "ONE". This way you can find apps which can open ONE files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "ONE viewer" or "ONE file" online in your favorite search engine.

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