CN_ File Description

Researcher:   |   Revised: January 16, 2019

Microsoft Silver

CN_ File Summary

Our most recent information indicates that CN_ files are associated with only a single known file type, the Compressed Windows Help Content format, and can be viewed with the Microsoft Windows software package (developed by Microsoft Corporation). The CN_ File Extension are listed predominantly as Compressed Files.

File Extension CN_ files have been identified on both desktop and mobile devices. The CN_ File Extension carries a Popularity Rating of "Low", meaning that these files are scarcely found in most user's file stores.

Please see the detailed information below to learn more about CN_ files and the programs that can open them. In addition, we provide simple troubleshooting information to help you open your CN_ file.

Low
Popular
11299
File Rank

/ 11690

Active

State

16

January

2019

Edited

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Types of CN_ Files


Dominant CN_ File Type

.CN_
File Format:.cn_
Group:Compressed Windows Help Content

CN_ file is a Compressed Windows Help Content (CNT). Some files in the software distribution are provided in compressed form.

Company: Microsoft Corporation
Kind:Compressed Files
Key: HKEY_CLASSES_ROOT\.cn_

Software Programs That Open The Compressed Windows Help Content:


Microsoft Windows by Microsoft Corporation

Windows

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CN_ Requests


Browser Hierarchy

Chrome (58.80%)
Firefox (11.05%)
Internet Explorer (9.04%)
Edge (8.46%)
Safari (3.87%)


Understanding CN_ Issues


Frequent CN_ Opening Issues

Microsoft Windows is Not Installed

You attempt to load your CN_ file and get an error such as "%%os%% Can't Open The CN_ File Extension". Generally, this is experienced in %%os%% because Microsoft Windows isn't installed on your PC. You won't be able to double-click to open your CN_ because your OS doesn't know what to do with it.


Tip: When another CN_ application is installed, you can choose to open it by selecting "Show Apps" and using that program.


Obsolete Version of Microsoft Windows

Sometimes your installed version of Microsoft Windows won't support your Compressed Windows Help Content file. Installing the latest version of Microsoft Windows from Microsoft Corporation is recommended. This problem is predominately due to having a Compressed Windows Help Content file version that was created by a newer version of Microsoft Windows than what you have installed on your PC.


Tip: Right-clicking on your CN_, then clicking "Properties" (Windows) or "Get Info" (Mac), can provide clues about your file version.


Primarily, problems experienced when opening CN_ files are due to having the incorrect version of Microsoft Windows installed on your computer.


Other Causes of CN_ File Opening Problems

Although you might already have Microsoft Windows or another CN_-associated software installed on your computer, you can still encounter problems opening Compressed Windows Help Content files. If you are continuing to have errors with loading CN_ files, other external issues might be to blame. Other contributing causes:

  • CN_ file references in the Windows Registry are broken
  • Unintentional removal of the description of the CN_ file inside the Windows Registry
  • Invalid installation of a CN_-associated program (eg. Microsoft Windows)
  • Something has caused file corruption of your CN_
  • Malware-tainted CN_ file can't be opened
  • Hardware associated with CN_ has outdated drivers
  • Windows has inadequate resources to open your Compressed Windows Help Content file

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