FileHint
JAEN

.key

Low risk

Apple Keynote Document

The native format for Apple's Keynote presentation app. Known for smoother transitions and cleaner typography than PowerPoint.

MIME types

  • application/x-iwork-keynote-sffkey

Category

document

What opens this file

  • Keynote
  • Keynote on iCloud.com

How to open by OS

Windows

  • Only via iCloud.com.

Mac

  • Keynote.

Linux

  • Requires conversion (keynote-to-pptx or similar).

Ios

  • Keynote.

Android

  • iCloud.com in the browser.

Safety notes

  • Keynote's distinctive animations are simplified or lost when converting to pptx.

Common mistakes

  • Sending .key to a Windows audience fails — export to pptx or PDF first.
  • Fonts stored only on the author's Mac will substitute on the destination platform.

Related extensions

References