There are 8 other file types using
the KEY file extension!

empty icon.key - Licence or encrypted security key [common]

key icon.key - Microsoft Windows 7 registry key file [common]

empty icon.key - OS/2 archive key

empty icon.key - ArcView geocoding matching keys

empty icon.key - DataCAD custom toolbar file

empty icon.key - Keyboard definition file

empty icon.key - Avira AntiVir Personal license key

empty icon.key - BioWare Infinity and Aurora game engine resource data

KEY file extension - iWork Keynote '09 presentation

What is key file? How to open key files?

File type specification:

Document file type icon Document file type

key file icon: key filetype icon

File extension key is also used in Keynote, a presentation software application developed as a part of the iWork productivity suite (which also includes Pages and Numbers applications) by Apple Inc.

The Keynote Presentation is XML based and may contain basic text documents or elaborated multi-page brochures, including images, special texts, tables, graphs, charts and more. be created from a blank page or based on saved template.

A .key file from Keynote is essentially compressed ZIP archive that contains a the main presentation document, previews and some metadata.

Previous versions of iWork Keynote used the keynote file extension instead.

The default software associated to open key file:

Keynote for Mac icon

Apple, Inc. logoKeynote for Mac  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

Apple Keynote is a profession presentation software for Mac OS X (macOS). It allows users to easily create rich presentations and slideshows. It is available for Mac, iOS and as on-line service. It exports presentations to PDF, QuickTime, JPEG, TIFF, PNG, HTML and PowerPoint formats.

Keynote for iOS icon

Apple, Inc. logoKeynote for iOS  Apple iOS (iPhone, iPad, iPod Touch devices) software

Company or developer:
Apple, Inc.

Keynote for iOS is presentation application designed for Apple iOS operating system. It is able to create world-class presentation — complete with animated charts and transitions — as simple as touching and tapping.

Related articles:

Open and convert Keynote presentations online

Help how to open:

Use Keynote program from Apple's iWork office suite to open .key files.

How to convert:

Keynote offers several export options, including movies(animations) or alternative document formats.

Find conversions from key file:

key to doc

key to pdf

key to pps

key to ppt

key to pptx

key to txt

key to word

Find converter to key file type:

keynote to key

pdf to key

pps to key

ppsx to key

ppt to key

pptx to key

txt to key

List of 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).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting key files.

Software that open key file - iWork Keynote '09 presentation

Programs supporting the exension key on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open key file action.

Apple macOS / Mac OS X:

Multiplatform:

On-line services:

Apple iOS (iPhone, iPad, iPod Touch devices):

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