File Extension Library

.FCHK File Extension

  • Developer by: Gaussian, Inc.
  • Category: Various data Files

What is an .FCHK file?

.FCHK file extension is created by Gaussian, Inc.. .FCHK has been classified as Various data Files.

.FCHK is Gaussian checkpoint data

The fchk file extension is related to Gaussian, a program that provides state-of-the-art capabilities for electronic structure modeling capabilities.

The fchk file contains saved checkpoint file that is created when a job operation is finished successfully.

MIME types:

How to open:

Use Gaussian to work with *.fchk files.

How to convert:

As far as we know, this .fchk file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to Open .FCHK file on different platforms

Open .FCHK File on Windows

  • Right-click a .FCHK
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .FCHK file and Select check box "Always use this app to open .FCHK files" Press "Ok"

Open .FCHK File on Mac

  • Right-click (or Ctrl + Left-click) the .FCHK file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .FCHK File on Linux

Right click on the .FCHK file, choose "Open with" and select a program from the list above

Open .FCHK File on iPhone

Select a file. If you don't see an application to open the .FCHK file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .FCHK File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .FCHK files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .FCHK files

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