A daily updated filename extension database!

CNT file extension

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

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

✅ Windows Help Content

CNT file is a Windows Help Content. It is a simple table of contents file.
Category: Document files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CNT aliases:
CNT related links:
CNT related extensions:
Windows Global Index File

Windows Help File

Rich Text Format Document

Windows Help Project

Windows Help Full-Text Search Index

Windows Help Full Text Group File

Windows Help Bookmark

Computer-based Training Document

Segmented Hypergraphic Document

Windows Help Project

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

🚫 The .cnt file extension is often given incorrectly!

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

cbt, cgt, cht, cmt, cn, cnf, cng, cnr, ct, ctn, dnt, fnt, nct, nt, snt

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Silicon Graphics Iris Cliptexture
TIFF Contone File
Cheat Engine Cheat Table
Windows Sticky Notes
ETCBC Chapter Data
Configuration File
Microsoft Windows Font
General CADD Font
Origin Configuration File
MSX2 Dynamic Publisher Font

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

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