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5 File Associations

.KEY File Extension

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Generic Icon
File TypeSoftware License Key File
DeveloperN/A
Popularity
3.8 (49 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryMisc Files
File Format Description

Generic file extension used by various programs when registering legal copies of the software; may be saved in a plain text format but generally contains some form of encrypted key string that authenticates the purchase and registers the software.

Since KEY files are used by various software products, no single program will be able to open them. Instead, you will have to know which program a KEY file corresponds to in order to use it to register the software.

Program(s) that open .KEY files
Microsoft Windows Logo
Windows
Icon Used by various programs
Updated 12/17/2012

LightWave License File Icon
File TypeLightWave License File
DeveloperNewTek
Popularity
3.6 (57 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryMisc Files
File Format Description

Software registration file used by LightWave, a professional 3D rendering application; stores the 16-digit license key and enables users to have a legal copy of the software.

For LightWave 10, licenses are saved to the following directories:

Windows: [user]\.NewTek\LightWave\10.0\licenses\

Mac OS X: [user]/Library/Application Support/NewTek/LightWave/10.0/licenses/

Program(s) that open .KEY files
Updated 5/17/2011

Generic Icon
File TypeKeyboard Definition File
DeveloperN/A
Popularity
3.5 (11 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategorySettings Files
File Format Description

Defines keyboard shortcuts or keyboard layouts for different languages; maps keys to different characters for different languages; stores custom keyboard shortcuts for some programs; used by operating systems for keyboard layouts.

Program(s) that open .KEY files
Microsoft Windows Logo
Windows
Icon Software Entire Connection
Icon Programs that support custom keyboard shortcuts
Mac OS X Logo
Mac OS
Icon Programs that support custom keyboard shortcuts
Updated 2/12/2007

Keynote Presentation Icon
File Type
This file is saved in a zipped format.
You can view the contents by unzipping it with a file decompression program.
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Keynote Presentation
DeveloperApple
Popularity
3.3 (12 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryData Files
File Format Description

Presentation created with Apple's Keynote presentation software; stored in the Mac OS X package format and includes slides, images, text, transitions, and XML data used by the presentation.

Program(s) that open .KEY files
Updated 6/6/2014

Generic Icon
File TypeSecurity Key
DeveloperN/A
Popularity
3.3 (7 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategorySystem Files
File Format Description

Contains registration information or a security code for a software program; often created when the program is registered; typically stored in the program's application folder or the system preferences folder.

Program(s) that open .KEY files
Microsoft Windows Logo
Windows
Icon Various programs that save registration information
Mac OS X Logo
Mac OS
Icon Various programs that save registration information
Updated 2/12/2007