Tips to open ONETOC2 file

Can't open the ONETOC2 file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open ONETOC2 files as well as a list of programs that support ONETOC2 files.

ONETOC2 file extension

File Name Microsoft OneNote Table Of Contents Format
File Developer Microsoft
File Category Settings Files

The ONETOC2 file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the ONETOC2 files. Below is a summary of the number of programs that support and open the ONETOC2 file on each system platform.

Operating systems
  • 2
  • 0
  • 0
  • 0
  • 0
  • 0

What is ONETOC2 file?

The file in the ONETOC2 format belongs to the Settings Files category. The author of this format is Microsoft. Additionally, the Settings Files category contains 1305 of other files. Microsoft OneNote Table Of Contents Format is most often found on 1 operating systems. These systems consist of Windows, although it may occasionally be found on another system, it will be non-functional. The main program that supports this format is Microsoft OneNote. This was created by Microsoft Corporation. This file type can also be opened by 1 other programs. The Microsoft Office programs will also handle the file when the Microsoft OneNote program does not fulfill its role.

How to open ONETOC2 file?

An often recurring problem with Microsoft OneNote Table Of Contents Format is that ONETOC2 is not associated with the correct program file. This is manifested by the fact that ONETOC2 files open in unusual applications or do not have an assigned program. How to solve such a problem?

The first thing you should do is just "doubleclick" on the ONETOC2 file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Microsoft OneNote

An often overlooked issue is to make sure that Microsoft OneNote is installed on the computer. This can be achieved by typing Microsoft OneNote into the operating system search engine. If we do not have this program, it is worth installing it, as it will help you automatically associate the file ONETOC2 with Microsoft OneNote. Below is a list of programs that support the file ONETOC2.

Programs to open ONETOC2 file

Remember to download programs supporting ONETOC2 files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of Microsoft OneNote with ONETOC2 files

If the application is or has been freshly installed, but the ONETOC2 file still does not use the Microsoft OneNote program, it means no association. This option is available from the level of Properties of a specific file available in the context menu. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. Changes can be made using the "Change" button. It may happen that in the next window there will be no appropriate program - however, this can be corrected with the "Browse" option where you should manually indicate the program location. Checking the "Always use the selected program ..." box will permanently associate the ONETOC2 file with the Microsoft OneNote program.

Step 3. Update Microsoft OneNote to the latest version

If, however, after binding Microsoft OneNote with Microsoft OneNote Table Of Contents Format there were still problems, you should update the program to the latest version. This can be done using the application (if it provides such options) or from the Microsoft Corporation website and install the latest version.

Step 4. Check for the following problems with the ONETOC2 file

If the above steps do not help, you can assume that the file itself is not correct. File problems can be divided into the following:

The ONETOC2 file may be unusually small compared to the original file. Usually this applies to ONETOC2 files downloaded from the Internet in case the download did not finish properly. The file should be downloaded again, making sure that the process has finished correctly.
The most common cause here is computer viruses. Perform a virus scan using available and up-to-date anti-virus software. Alternatively, you can use the scanners available online. For the best results, we will scan the entire operating system, not just our ONETOC2 file. As a result of the scan, sometimes it is not possible to recover ONETOC2 files, which are deleted if there is a backup of this file, then after restoring it, it must also be scanned.
A typical compatibility error - the program does not support the older version of the ONETOC2 file. On their websites, developers usually offer free solutions to such problems, e.g. in the form of a conversion program or an older version of the program.
The file may be corrupted in a number of ways. Repairing is very dependent on the file type. Some programs offer the ability to automatically repair ONETOC2 file corruption. The easiest way is to restore the file from a backup, if there is one, or contact Microsoft
When reading, a message appears that the file was encrypted or corrupted. The encrypted file ONETOC2 except for the special designation, works normally, but only on the device where it was encrypted, before transferring it to another machine, decryption is required.
Some of the system directories are excluded from modification. While there is usually no problem reading such a file, it may not be possible to save it. If possible, you can try to move the ONETOC2 file to another location.
This can happen on a file that does not support multiple access. In this case, the ONETOC2 file is blocked by the first application to open it. Just close unnecessary programs. If the error persists after closing other programs, wait for a while. However, some background programs may block the ONETOC2 file while scanning. If nothing helps, please reset the device.