Tips to open FCHK file

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

FCHK file extension

File Name Gaussian Checkpoint
File Developer Gaussian, Inc.
File Category Misc Files

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

Operating systems
  • 1
  • 0
  • 0
  • 0
  • 0
  • 0

What is FCHK file?

The file in the FCHK format belongs to the Misc Files category. It was designed by Gaussian, Inc.. Additionally, the Misc Files category contains 6033 of other files. Gaussian Checkpoint is most often found on 1 operating systems. The file will work on Windows systems, unfortunately not on others. The main program that supports this format is Gaussian. This was created by Gaussian, Inc..

How to open FCHK file?

The main problem with Gaussian Checkpoint is that the FCHK file is incorrectly associated with programs. Thus, when you open FCHK, the program selection wizard or some other program starts. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the FCHK 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 Gaussian

The first step is to check if the computer has the Gaussian program installed. The easiest method is to use the system search engine by entering the program name Gaussian in it. If it is not, installation may solve the problem, as most applications create file associations during installation. Below is a list of programs that support the file FCHK.

Programs to open FCHK file

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

Step 2. Create association of Gaussian with FCHK files

If, despite the installed application, the FCHK file does not start in the Gaussian application, you must create a file association. This option is available from the level of Properties of a specific file available in the context menu. Information about the file and the program that the file is associated with are available here. Using the "Change" button we can set the program to handle this type. The program should be visible in the window, otherwise it should be selected manually using the "Browse" button and the program installation directory should be indicated. Checking the "Always use the selected program ..." box will permanently associate the FCHK file with the Gaussian program.

Step 3. Update Gaussian to the latest version

The fault may also lie with the Gaussian program, it is possible that Gaussian Checkpoint requires a newer version of the program. In this case, use the Gaussian, Inc. website or update the program from the application.

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

Of course, it may happen that despite the above steps, the file still does not work. The most common file problems are:

The affected file may be 0 KB or smaller than expected. This is most often caused by a problem while downloading the FCHK file. The only repair option is to download the file again.
The operating system may be infected with a computer virus. A quick virus scan using an up-to-date antivirus program should clear up any doubts. Some antivirus vendors also provide free online scanners. The scan should cover the entire computer, not only the FCHK file that we want to open. However, remember that not every infected FCHK file can be recovered, so it is important to take care of regular backups.
This can happen especially when the program is dynamically developed and the structure of the FCHK files changes over time. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
There can be many reasons for this. Depending on the type of file, it is necessary to repair it accordingly. Some programs offer the ability to automatically repair FCHK file corruption. You can restore the file from a backup or use Gaussian, Inc. help.
The program can also signal the fact of encryption. The encrypted file FCHK 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 FCHK file to another location.
This can happen on a file that does not support multiple access. Some file types can only be opened in one program at a time. Just close unnecessary programs. Sometimes it is necessary to wait a while before referencing the FCHK file again. However, some background programs may block the FCHK file while scanning. If this does not work either, restart the device.