There are 8 other file types using
the KEY file extension!
.key - iWork Keynote '09 presentation [common]
.key - Microsoft Windows 7 registry key file [common]
.key - OS/2 archive key
.key - ArcView geocoding matching keys
.key - DataCAD custom toolbar file
.key - Keyboard definition file
.key - Avira AntiVir Personal license key
.key - BioWare Infinity and Aurora game engine resource data
KEY file extension - Licence or encrypted security key
What is key file? How to open key files?
File type specification:
File extension key 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.
The default software associated to open key file:
Company or developer:
Kaspersky Lab
Kaspersky Anti-Virus is set of tools that protect computers against viruses, trojans, worms and other malicious software.
Company or developer:
Avira GmbH
Avira Internet Security Suite is a dedicated computer security and internet connection protection software by Avira. It protects against viruses, trojans, phising, rootkits and all the messy stuff that can ruin your computer.
List of recommended software applications associated to the .key file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android 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 File-Extensions.org's database).
Unspecified and all other actions for computer programs working with key file - Licence or encrypted security key
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.).
Microsoft Windows:
Main software associated with key file by default: Kaspersky Anti-Virus
Avira Premium Security Suite
Other suggested software: Avira AntiVir Premium
Avira AntiVir Personal
Estimator
Sentry 2020
Forecast Pro
Top Secret Crypto Gold VMware Workstation
LightWave 3D