Opening a COK File

The COK file type is primarily associated with Cities: Skylines.

COK	File extension: COK
	File type:	compressed data container

What is a COK file?

COK files mostly belong to Cities: Skylines. Primary Use (Cities: Skylines Save File):
This COK file acts as a game save file. It uses a ZIP archive format to store your city design and game progress.
Alternative Use (Thermomix Recipe File):
In some cases, a COK file holds a recipe for Thermomix devices. This type is connected with Cook Expert and may be seen as a Cookidoo recipe file. For extra details, visit Magimix.
Additional Use (Website Cookie Data File):
A few COK files contain cookie information managed by browsers like Google Chrome. For more about Chrome cookie handling, see Chrome.

Use Cities: Skylines to open game save COK files.

For recipe COK files, use the official Thermomix/Cook Expert app.

Cookie COK files are managed internally by your browser.

FilExt.com tip: These files use a compressed structure that can sometimes be renamed to .zip to inspect the internal data.

How to open a COK file

You need a suitable software like Cities: Skylines to open a COK file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your COK file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a COK file directly in the browser:. Just drag the file onto this browser window and drop it.

Online COK Text Viewer

Choose your .cok file to analyze

or drag and drop it here

Online File Viewer

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COK format details:

To view or edit COK files you need to know the file format, because it determines how the data in this file is stored. The file format can be determined based on the file extension and the signature (the first few characters of a file). Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. So a detailed analysis of a file is vital in order to determine the format and the associated program. Below is our analysis of the COK files:

The COK file extension is quite common and is primarily used by a single program. But the following two file formats are common:

• 85% of all COK files are based on the zip format, that is, a COK file includes multiple compressed files. Primarily 2 to 4 files are included. You can see the included files and images by renaming the file extension to .zip and then double-clicking it. The average file size is 50 MB with most files being between 24 MB and 80 MB in size. Certain words are almost always found in the files, such as Texture. Some examples of file names are VT.cok. Files like these are about save, auto, pack, blob, archipelago, locale, city and tampere.
• 7% of all COK files belong to Cookeo recipe. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. Most of these files are 95 KB to 110 KB in size. The files contain the following words: frFR and COOK. The file name fr_Du Monde.cok or fr_Tradition.cok is typical for these files. Such COK files store data about monde, tradition, diterran, asie, bistrot, classic and cocina.

All other COK files (8%) have no uniform format, the following 3 formats can be found: cok. Tagged as recovery, blogspot, county, island, valley or mips. If you want to find out which format your COK file belongs to, just click on the button "Choose your .cok file to analyze".