KEY file - How do I open a .key file?

The table below provides useful information about the .key file extension. It answers questions such as:

• What is the .key file?
• What program do I need to open a .key file?
• How can the .key file be opened, edited or printed?
• How can I convert .key files to another format?

We hope you find this page helpful and a valuable resource!

16 extension(s) and 0 alias(es) found in database

✅ General Key Data

.key

Description:
The KEY file is a General Key Data. Various programs use this extension for licensing/security keys.

The KEY format description is not yet available

Category: Other files

Application: -

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

-

✅ Bioware Game Data Key

.key

Description:
The KEY file is a Bioware Game Data Key. BioWare's games and tools make use of a very large number of files that are packed into a group of files having the BIF extension. The contents of the BIF files are described by one or more files having the KEY extension.

The KEY format description is not yet available

Category: Game Data files

Application: Neverwinter Nights

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.ssf

Bioware Aurora Sound Set File

.bif

Bioware Game Data

.2da

Bioware 2-Dimensional Array

.ifo

Bioware Information File

.gff

Bioware Generic File Format

.erf

Bioware Encapsulated Resource File

✅ iWork Keynote Presentation

.key

Description:
The KEY file is an iWork Keynote Presentation. Keynote is a presentation software application developed as a part of the iWork productivity suite by Apple Inc.

KEY format description

Category: Document files

Application: Apple iWork Keynote

Mime-type: application/x-iwork-keynote-sffkey

Magic number: -

Magic string: -

Sample: -

KEY aliases:

keynote

KEY related links:

-

KEY related extensions:

.pps

Microsoft PowerPoint Slideshow

.ppt

Microsoft PowerPoint Presentation

.pptx

Microsoft PowerPoint 2007 Presentation

.pptm

Microsoft PowerPoint 2007 Presentation

.ppsx

Microsoft PowerPoint 2007 Slideshow

.ppsm

Microsoft PowerPoint 2007 Slideshow

✅ Tinker Keyword Parameters

.key

Description:
The KEY file is a Tinker Keyword Parameters. Tinker is a software tools for Molecular Design. The keyword parameter file always has the extension .key and is optionally present during TINKER calculations.

The KEY format description is not yet available

Category: Data files

Application: Tinker

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.frac

Tinker Fractional Coordinates

.xyz

Tinker Cartesian Coordinates

.int

Tinker Internal Coordinates

.dyn

Tinker Dynamics Computation Data

.arc

Tinker Archive

.seq

Tinker Sequence

✅ SmartWare Database Key File

.key

Description:
The KEY file is a SmartWare Database Key File. SmartWare is a programming platform. SmartWare also includes a word processor, spreadsheet, and communication modules.

KEY format description

Category: Data files

Application: SmartWare

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.bp1

SmartWare Project Backup

.bws

SmartWare Worksheet Backup

.mbk

SmartWare Macro Backup

.ws

SmartWare Worksheet Document

.rdf

SmartWare Report Definition File

.gdb

SmartWare Business Graph Definition File

✅ KetuFile Encryption Key Data

.key

Description:
The KEY file is a KetuFile Encryption Key Data. KetuFile (Kryptographic Encoding and Transfer Utility) is a file encryption program. You can use KetuFile to encrypt any file on a Windows PC, such as word processor files, spreadsheets, images, etc.

The KEY format description is not yet available

Category: Data files

Application: KetuFile

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.ktu

KetuFile Encrypted Data

✅ ArcInfo Geocoding ODB Matching Keys Data

.key

Description:
The KEY file is an ArcInfo Geocoding ODB Matching Keys Data. ArcInfo is a complete and extensible geographic information system.

The KEY format description is not yet available

Category: Data files

Application: ESRI ArcInfo

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.aib

ArcInfo Binary Coverage

.bil

ArcInfo Band Interleaved by Line Image

.bip

ArcInfo Band Interleaved by Line Image

.bsq

ArcInfo Band Sequential Image

.e00

ArcInfo ASCII Export

.gml

Geography Markup Language Document

✅ Concordance Database Key Fields Data

.key

Description:
The KEY file is a Concordance Database Key Fields Data. Concordance is an electronic discovery, litigation document management, and litigation support tool.

The KEY format description is not yet available

Category: Data files

Application: Concordance

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.cib

Concordance Imagebase File

.dcb

Concordance Database

.opt

Concordance Native Viewer Database

.ivt

Concordance Inverted Full Text Database

.dct

Concordance Dictionary Database

.cpl

Concordance Desktop Programming Language Script

✅ Lightwave 3D License Key

.key

Description:
The KEY file is a Lightwave 3D License Key. Lightwave 3D is a great 3d modeler and animator software.

The KEY format description is not yet available

Category: Data files

Application: Lightwave 3D

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.lwo

Lightwave 3D Object

.asc

Autodesk 3D Studio Scene in ASCII

.3ds

Autodesk 3D Studio Scene

.3dx

Rhino 3D Model

.pln

ArchiCAD 3D Model

.o2c

O2C 3D Model

✅ Avira AntiVirus License Key

.key

Description:
The KEY file is an Avira AntiVirus License Key. Avira Antivirus is a program to help detect and delete virus timely so as to protect computers from being compromised.

The KEY format description is not yet available

Category: Data files

Application: Avira AntiVirus

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.qua

Avira AntiVirus Quarantined File

.avp

Avira AntiVirus Profile Data

.avj

Avira AntiVirus Job Data

.avl

Avira AntiVirus Status Data

.vdf

Avira AntiVirus Definitions Data

.log

Avira AntiVirus Report Log

✅ DataCAD Custom Toolbar Keys Data

.key

Description:
The KEY file is a DataCAD Custom Toolbar Keys Data. DataCAD is a professional-level AEC CADD program for architectural design, photo-realistic rendering, animation, and construction document creation.

The KEY format description is not yet available

Category: Data files

Application: DataCAD

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.mcr

DataCAD Keyboard Macro

.sm3

DataCAD Symbol File

.tpl

DataCAD Template Document

.dsf

DataCAD 15 Symbol File

.lys

DataCAD Layer Control Data

.dc5

DataCAD Drawing

✅ Infinity Engine Key Data

.key

Description:
The KEY file is an Infinity Engine Key Data. Infinity Engine is a game engine which allows the creation of isometric role-playing video games.

The KEY format description is not yet available

Category: Game Data files

Application: Baldurs Gate

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.bam

Infinity Engine Animation

.vef

Infinity Engine Visual Effects

.cre

Infinity Engine Creature

.eff

Infinity Engine 2.0 Effects

.tiz

Infinity Engine Compressed Tileset

.chu

Infinity Engine 1.0 User Interface Description

✅ Crimson Editor Language Keywords Data

.key

Description:
The KEY file is a Crimson Editor Language Keywords Data. Crimson Editor is a freeware text editor for Microsoft Windows.

The KEY format description is not yet available

Category: Data files

Application: Crimson Editor

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.spc

Crimson Editor Language Specification Data

✅ ArcView Geocoding Matching Keys Data

.key

Description:
The KEY file is an ArcView Geocoding Matching Keys Data. ArcView is full-featured GIS software for visualizing, analyzing, creating, and managing data with a geographic component.

The KEY format description is not yet available

Category: Data files

Application: ESRI ArcGIS Desktop

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.apr

ArcView Project

.agr

ESRI ArcGIS Ascii Grid

.stn

ArcView Geocoding Standardization

.avl

ArcView Legend Template

.avx

ArcView Extension

.shp

ArcView Shape File

✅ OS/2 Warp Archive Key

.key

Description:
The KEY file is an OS/2 Warp Archive Key. OS/2 is a series of computer operating systems, initially created by Microsoft and IBM, then later developed by IBM exclusively.

The KEY format description is not yet available

Category: Data files

Application: IBM OS/2 Warp

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.rsu

OS/2 Warp Remote Software Update

.os2

OS/2 Warp System File

.os3

OS/2 Warp 3 System Data

.bio

OS/2 Warp Bios Data

.acv

OS/2 Warp Audio Driver

.ptr

OS/2 Warp Cursor Image

✅ Windows Registry Key Data

.key

Description:
The KEY file is a Windows Registry Key Data. The Windows Registry is a collection of databases of configuration settings for Microsoft Windows operating systems.

The KEY format description is not yet available

Category: Data files

Application: Microsoft Windows

Mime-type: application/octet-stream

Magic number: -

Magic string: -

Sample: -

KEY aliases:

-

KEY related links:

-

KEY related extensions:

.da0

Windows Registry Database Backup

.db

Windows Thumbnail Cache

Other types of files may also use the .key file extension.

🚫 The .key file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

🔴 Can't open a .key file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:

example.key

To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .key file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .key file extension, write to us!