Files with onecache extension can be usually found as temporary cache files generated by Microsoft OneNote note-taking software.

Detailed description

Software that open onecache file

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ONECACHE file extension - Microsoft OneNote cache file

What is onecache file? How to open onecache files?

File type specification:

Temporary file type icon Temporary file type

File extension onecache is exclusively related to Microsoft OneNote, a easy-to-use note-taking and information-management program in the  Microsoft Office system with which you can capture your thoughts and ideas in electronic notebooks, where you can easily organize, search, and share them.

A .onecache files are used for caching.

The default software associated to open onecache file:

Microsoft OneNote icon

Microsoft Corporation logoMicrosoft OneNote  Microsoft Windows software

Company or developer:
Microsoft Corporation

Application developed by Microsoft and used to create short notes, drawings, audio and video commentaries that can be shared with other users over Internet, or synchronized with OneNote application installed in the portable device. OneNote for desktop computers is distributed with the Microsoft Office suite and Windows 10 system, and also is available for free download.

OneNote for mobile platforms is distributed as stand alone application. Mobile form of OneNote is compatible with Windows Mobile, Windows Phone, iOS and Android mobile operating systems.

Microsoft OneNote for Mac icon

Microsoft Corporation logoMicrosoft OneNote for Mac  Apple macOS / Mac OS X software

Company or developer:
Microsoft Corporation

Microsoft OneNote for Mac is digital notebook application for Apple Mac OS X that allows users to share notes and collaborate with others, across multiple devices. It is able to Capture rich notes for classwork, meetings, or research, create an itinerary and keep track of your travel plans for your next big vacation etc.

Help how to open:

It does not seem to be possible to manually access the contents of .onecache files.

How to convert:

Temporary files usually cannot be converted to anything else.

List of recommended software applications associated to the .onecache file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open onecache file, edit onecache file, convert onecache file, view onecache file, play onecache file etc. (if exist software for corresponding action in's database).

Unspecified and all other actions for computer programs working with onecache file - Microsoft OneNote cache file

Click on the software link(s) for more information. Suggested software applications use onecache file type for internal purposes and/or also by different way than common edit or open onecache file actions.

Microsoft Windows:

Main software associated with onecache file by default:
Microsoft OneNote small icon Microsoft OneNote
Other suggested software:
Microsoft Office small icon Microsoft Office

Apple macOS / Mac OS X:

Main software associated with onecache file by default:
Microsoft OneNote for Mac small icon Microsoft OneNote for Mac
Other suggested software:
Microsoft Office for Mac small icon Microsoft Office for Mac

Windows Mobile/CE:

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