How to open Encryption key .key files
Have you had trouble opening the key file on your computer? What are key files? We explain what they are and recommend software that we know will open them.
What is key file?
Various .key files are typically utilized for storing data related to license keys. These files serve to confirm that the user possesses a legally acquired version of the software.
Encryption key description
Many .key files are used for various encrypted license or security files.
These files are often provided by a software manufacturer as proof of purchase and to unlock the full functionality of a software program.
Other types of .key files might be used to encrypt or decrypt data, ensuring that only those with the correct key file can access the sensitive or confidential information.
Suggested software to open key file

Kaspersky Anti-Virus
One of the more popular antivirus programs

Avira Premium Security Suite
A computer security software
There are other KEY filename extensions with the same .key suffix
key - ArcView geocoding matching keys
Files with key file extension can also be found GIS files with geocoding matching keys data for ESRI ArcView.
key - Avira AntiVir Personal license key
A key file extension is used for files that store license keys of Avira AntiVir program. Probably used to validate the copy of the program.
key - BioWare Infinity and Aurora game engine resource data
A key file stores central reference point to locate files required by the game based on BioWare Infinity or Aurora engine.
key - DataCAD custom toolbar file
Files with key extension are used by the DataCAD application. They are used as a customization files.
key - iWork Keynote '09 presentation
Files with key extension can be often found as presentations saved in latest versions of Apple (iWork) Keynote, a professional presentation tool for Mac OS X, macOS and iOS.
key - Keyboard definition file
Files with key extension can be also quite often found as various settings that contain keyboard layouts, keybinds or other data.
key - Microsoft Windows 7 registry key file
Files with key file extension can also be found as registry entries for o Microsoft Windows operating system.
key - OS/2 archive key
A key file extension is related to the IBM OS/2 operating system and used for its archive key files.