A daily updated filename extension database!

COOK file extension

The table below provides useful information about the .cook file extension. It answers questions such as:

  • What is the .cook file?
  • What program do I need to open a .cook file?
  • How can the .cook file be opened, edited or printed?
  • How can I convert .cook files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Netscape for Mac Cookie Data

COOK file is a Netscape for Mac Cookie Data. Netscape Navigator was a proprietary web browser. It was the dominant browser in terms of usage share in the 1990s.
COOK format description not yet available
Category: Data files
Application: Netscape for Mac
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
COOK aliases:
COOK related links:
COOK related extensions:
Netscape Navigator Temporary File

Netscape Navigator Java Classes File

Netscape Communicator Address Book

Netscape for Mac User Profile Data

Netscape Communicator Locale Data

Netscape Navigator Addressbook Identification Data

Netscape Navigator Plug-in

Netscape Navigator VRJ Data

Other types of files may also use the .cook file extension.

🚫 The .cook file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cok, coo, cool, ook

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Carmageddon Game Data
TSP-INet Server Error Reports Data
Tajima Embroidery Data File
QB - Text Analyzer Vocabulary Data
Arachne Batch Script

🔴 Can't open a .cook file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .cook file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .cook file extension, write to us!

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