| File Type 1 |
Security Key (Most common) |
| File Format |
File |
| Common? |
No |
| File Description |
Contains registration information or a security code for a software program; often created when the program is registered; typically stored in the program's application folder or the system preferences folder. |
| Program(s) that open key files |
Mac / Windows: Various programs that save registration information |
| File Type 2 |
Keyboard Definition File |
| File Format |
Standard File |
| Common? |
No |
| File Description |
Defines keyboard shortcuts or keyboard layouts for different languages; maps keys to different characters for different languages; stores custom keyboard shortcuts for some programs. |
| Program(s) that open key files |
Mac / Windows: Operating System (for keyboard layouts); Programs that support custom keyboard shortcuts |
| File Type 3 |
Keynote Presentation |
| File Format |
Proprietary File |
| Common? |
No |
| File Description |
Presentation created with Apple's Keynote presentation software; stored in the Mac OS X package format and includes slides, images, text, transitions, and XML data used by the presentation. |
| Program(s) that open key files |
Mac: Apple Keynote |
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