There are 8 other file types using
the KEY file extension!

key file icon.key - iWork Keynote '09 presentation [common]

key file icon.key - Microsoft Windows 7 registry key [common]

key file icon.key - OS/2 archive key file

key file icon.key - ArcView geocoding matching keys

key file icon.key - DataCAD custom toolbar file

key file icon.key - Keyboard definition file

key file icon.key - Avira AntiVir Personal license key file

key file icon.key - BioWare Infinity and Aurora game engine resource file

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KEY file extension - Licence or encrypted security file

What is key file? How to open key files?

File type specification:

Encoded and encrypted file type icon Encoded and encrypted file type

The key file extension is frequently used by various programs for files that hold various encrypted data or keys, such as program licenses.

These files are not meant to be opened directly. Programs access them to verify legally purchased licenses and such. For example antivirus programs like Avira or Kaspersky use *.key files to store personal licenses.

Also used for various encrypted files (keys) by security programs.

Help how to open KEY files:

These files are not meant to be opened directly.

How to convert file with extension KEY:

You typically cannot converted these files to anything else, there is also no reason to do so.

List of recommended software applications associated to the .key file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open key file, edit key file, convert key file, view key file, play key file etc. (if exist software for corresponding action in's database).

  • Others key file

Unspecified and all other actions for computer programs working with key file - Licence or encrypted security file

Click on the software link for more information about Kaspersky Anti-Virus. Kaspersky Anti-Virus uses key file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

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