>> KEY-TEF file

KEY-TEF file format description

Many people share .key-tef files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .key-tef file can be edited, converted or printed with. On this page, we try to provide assistance for handling .key-tef files.

1 filename extension(s) found in our database.

.key-tef - iWork Keynote iCloud Presentation

The KEY-TEF document files are related to Apple iWork Keynote. 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.

Apple iWork Keynote
Document files
- / -
iWork Keynote iCloud Presentation related extensions:
Apple Pages Document
Apple Pages iCloud Document
Adobe FrameMaker Book
Plain Text Document
LaserDRW Document
Mastercam X9 Document

Naturally, other applications may also use the .key-tef file extension. Even harmful programs can create .key-tef files. Be especially cautious with .key-tef files coming from an unknown source!

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 can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.


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