File Extension Library

.ONETOC2 File Extension

  • Developer by: Microsoft
  • Category: Settings Files
  • Format: Binary

What are .ONETOC2 files and how to open them?

Can't open .ONETOC2 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .ONETOC2 file.

What is a .ONETOC2 file extension?

.ONETOC2 file extension is created by Microsoft. .ONETOC2 has been classified as Settings Files. The format of .ONETOC2 file is Binary.

.ONETOC2 is Microsoft OneNote Table of Contents File

Index file created by Microsoft OneNote, a program used for personal journaling and note taking; stores information about the ordering of different note-taking sections; used for organizing the collection of notes in the notebook.

If the ONETOC2 file is deleted, OneNote will display the notebook sections in alphabetical order, which the user can manually reorder.

List of all softwares that can open the Microsoft OneNote Table of Contents File
Microsoft OneNote 2016

How to fix problems with .ONETOC2 files

  1. You need to update the application that you normally use to open .ONETOC2 files. Only the latest version of the software supports the current .ONETOC2 file format
  2. You need to check the .ONETOC2 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)