A daily updated filename extension database!

KEY-TEF file extension

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

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

Table of Contents

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

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

✅ iWork Keynote iCloud Presentation

KEY-TEF file is an iWork Keynote iCloud Presentation. Keynote is a presentation software application developed as a part of the iWork productivity suite by Apple Inc.
KEY-TEF format description not yet available
Category: Document files
Application: Apple iWork Keynote
Mime-type: application/x-iwork-keynote-sffkey
Magic number: -
Magic string: -
Sample: -
KEY-TEF aliases:
KEY-TEF related links:
KEY-TEF related extensions:
Microsoft PowerPoint Slideshow

Microsoft PowerPoint Presentation

Microsoft PowerPoint 2007 Presentation

Microsoft PowerPoint 2007 Presentation

Microsoft PowerPoint 2007 Slideshow

Microsoft PowerPoint 2007 Slideshow

iWork Keynote Presentation

iWork Keynote Theme

iWork Keynote XML Presentation

iWork Keynote Note Document

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

🔴 Can't open a .key-tef 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:


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-tef 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-tef file extension, write to us!

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