A daily updated filename extension database!

CFN file extension

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

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

✅ Calamus Font Data

Calamus Font Data .cfn file icon
CFN file is a Calamus Font Data. Calamus is a highly modular Desktop Publishing (DTP) system from invers Software.
CFN format description not yet available
Category: Font files
Application: Calamus
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CFN aliases:
CFN related links:
CFN related extensions:
Adobe Font Metrics

MS-DOS Code Page Information

Fontographer Font Project

Windows Bitmap Font

Postscript Type1 ASCII Font

Postscript Type1 Font Binary

TrueType Font

Font Definition Block

TeX Font Metric

Spline Font Database

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

🚫 The .cfn file extension is often given incorrectly!

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

cbn, ccn, cdn, cen, cf, cfb, cfg, cfh, cfm, cgn, cn, cnf, crn, ctn, cvn

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Microsoft Compound File Binary
Delphi Definition File
CEN EN 13032 Photometric Data
RMCProfile Nitrogen Carbon Neighbours Data
ColdFusion Markup Language
Corel Ventura Printer Font
Spike2 Filter Bank Data
FIFA Game Data
Sendmail M4 Configuration File
Origin Configuration File

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

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