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iWork Keynote '09 presentation file definition and 9 other types and linked programs information.

 

How to Open Key Files

 

File extension key is used by following type(s):

 type 1 description:
iWork Keynote '09 presentation 
 

 

 

Programs
that open key files:

iWork (Apple OS X)

 

type 2 description:
Microsoft Windows 7 registry key
The KEY file extension is used in Windows 7 much like REG format in previous  versions of Windows. It is a file that contains registry information.

You can simply add the registry entry with double clicking on the .key file. You can also view and read the content in any text editor.

Be careful when handling registry file, they might contain malicious code or otherwise corrupt your computer. Always be sure to install registry entries from reliable sources.

Programs
that open key files:
  • Microsoft Windows 7
  • NotePad (Microsoft Windows)

 

type 3 description:
ArcView geocoding matching keys
The KEY file extension is used by ESRI ArcView for a format that contain geocoding matching keys in ODB format. Probably some sort of specialized GIS file type.
Software:
  • ArcView (Microsoft Windows)
  • ENVI (Microsoft Windows)

 

 type 4 description:
Avira AntiVir Personal license key files
KEY file suffix is related to Avira AntiVir and used for a format that hold license data.
Software:
  • Avira AntiVir Personal (Microsoft Windows)

 

type 5 description:
BioWare Infinity and Aurora game engine resource
The KEY file extension is also used in Bioware's Infinity and Aurora game engines for files that hold some resource data. Used in such successful titles as Baldur's Gate or Neverwinter Nights.
Programs
that open key files:
  • Baldur's Gate (Microsoft Windows)
  • Neverwinter Nights (Microsoft Windows)

 

type 6 description:
DataCAD custom toolbar 
The KEY file extension is also used by DataCAD 3D CAD software.

A *.key file used in this program contains customized toolbar that can be imported to the program. Old file format replaced by DTB format in latest versions of DataCAD.

Programs:
  • DataCAD

(Microsoft Windows)

 

type 7 description:
Keyboard definition 
The KEY file extension is sometimes used for settings format that contains saved keyboard layouts, shortcuts, keybinds or other configuration data for keyboards. Such formats are frequently used in computer games.
Programs
that open key files:
  • Delta Force (Microsoft Windows)
  • Diablo II (Microsoft Windows)
  • SmartWare (Microsoft Windows)

 

type 8 description:
Licence or encrypted security files
The KEY file extension is frequently used by various programs for files that hold various encrypted data or keys, such as program licenses.

These 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.

Programs
that open key files:
  • Avira AntiVir Personal (Microsoft Windows)
  • Avira AntiVir Premium (Microsoft Windows)
  • Avira Premium Security Suite (Microsoft Windows)
  • Estimator (Microsoft Windows)
  • Forecast Pro (Microsoft Windows)
  • Kaspersky Anti-Virus (Microsoft Windows)
  • Sentry 2020 (Microsoft Windows)
  • Top Secret Crypto Gold (Microsoft Windows)
  • VMware Workstation (Microsoft Windows)

 

type 9 description:
OS/2 archive key files
The KEY file extension is associated with OS/2 operating system and used for archive key files.
Programs
that open key suffix:
  • OS/2