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Navigation: Home > CN_ file

Informations about the CN_ filename extension and the file formats associated with it

We collected the information you should know about the .cn_ filename on this page. If you were sent a(n) .cn_ file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.cn_ - Compressed Windows Help Content

The CN_ file is a Other file, which is connected to the Compressed Windows Help Content according to our registry. With the adequate settings, the Compressed Windows Help Content (.cn_) files can be opened or converted with the help of Expand.

Format description:
CN_ format
Magic string:
- / -
Related links:
Related extensions:
Microsoft Cabinet File
Compressed Microsoft Cabinet File
Compressed CHM File
Compressed COM File
Compressed CPL File
Compressed DAT File

Important! Programs other than the ones listed above may also use the .cn_ file extension. Even harmful programs can create files with the .cn_ extension to store data in them. Always be careful with .cn_ files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .cn_ file can’t be opened on your computer?

If the program necessary for opening the .cn_ file is installed properly on your computer, then the quickest and simplest way to open the .cn_ file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .cn_ file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .cn_ extension

The .cn_ filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .cn_ files.

ch_, nc_, cm_, cn

Maybe you’re not even looking for the .cn_ file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .cn_ extension. It’s possible that the one you’re looking for is among them.

Compressed CHM File
GenePattern Copy Number Data
Nero BackItUp Child File

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

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We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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