Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .onetoc2

0 extension(s) and 1 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .onetoc2 file?
  • Which program can create the .onetoc2 file?
  • Where can you find a description of the .onetoc2 format?
  • What can convert .onetoc2 files to a different format?
  • Which MIME-type is associated with the .onetoc2 extension?
Microsoft OneNote Table of Contents .onetoc file icon

Microsoft OneNote Table of Contents

The ONETOC file is a Microsoft OneNote Table of Contents data. Microsoft OneNote is a tool for notetaking, information gathering, and multi-user collaboration by Microsoft.
Category: Data files
Program name: -
Mime-type: application/onenote
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Microsoft OneNote Document
Microsoft OneNote Temporary File
Microsoft OneNote Package
Microsoft OneNote Binary Data
Microsoft OneNote Cached Data
Microsoft OneNote Signature Data
Microsoft OneNote Stub File

Other types of files may also use the .onetoc2 file extension. If you have helpful information about .onetoc2 extension, write to us!

Can't open a .onetoc2 file?

If you want to open a .onetoc2 file on your computer, you just need to have the appropriate program installed. If the .onetoc2 association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.onetoc2

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android