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21W file extension

The table below provides useful information about the .21w file extension. It answers questions such as:

  • What is the .21w file?
  • What program do I need to open a .21w file?
  • How can the .21w file be opened, edited or printed?
  • How can I convert .21w 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

✅ Snood Preferences Data

Snood Preferences Data .21w file icon
21W file is a Snood Preferences Data. Snood is a puzzle game developed by Dave Dobson.
21W format description not yet available
Category: Game Data files
Application: Snood
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
21W aliases:
21W related links:
21W related extensions:

Other types of files may also use the .21w file extension.

🔴 Can't open a .21w 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 .21w 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 .21w file extension, write to us!

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