File Extension Library


.CAK File Extension

  • Category: Digital video and movie Files

What is an .CAK file?

.CAK file extension has been classified as Digital video and movie Files.

.CAK is FILM/CPK file format

The cak file extension is used for FILM/CPK format, a multimedia container file format developed by Sega for use on its early CD-ROM home video game consoles. Most likely obsolete by now.

.CAK file format is deprecated and this file format is no longer supported.

Currently, .CAK file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .cak 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 .CAK file on different platforms

Open .CAK File on Windows

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

Open .CAK File on Mac

  • Right-click (or Ctrl + Left-click) the .CAK 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 .CAK File on Linux

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

Open .CAK File on iPhone

Select a file. If you don't see an application to open the .CAK 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 .CAK 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 .CAK files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .CAK files

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