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KNN file extension

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

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

✅ Clarion Database Key Data

KNN file is a Clarion Database Key Data. Clarion is a commercial, 4GL, multi-paradigm, programming language and Integrated Development Environment (IDE) from SoftVelocity used to program database applications.
KNN format description not yet available
Category: Data files
Application: Clarion
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
KNN aliases:
KNN related links:
KNN related extensions:

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

🚫 The .knn file extension is often given incorrectly!

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

kbn, kmn, knb, knj, knm, mnn, nn

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

CDE Japanese Kanji Data
iWork Keynote Macro
TeamSpeak Keybinding
Nero CD File List
Keyman Developer Keyboard Source File
Neuro-Expert Knowledge Base Data
Microsoft Money Cache Data

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

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