How do I open a .KEY file on Windows or Mac?

You can open .KEY files using Apple Keynote (macOS / iOS), iCloud Keynote Web App, LibreOffice Impress. If you do not have native software installed, you can use OpenAnyFile's free File Identifier or convert .KEY to a standard format in your browser.

Is a .KEY file safe to open?

This format carries a safety rating of Low Risk. Open .KEY decks on Windows using iCloud web interface or export to PPTX

Can I convert a .KEY file to other formats?

Yes! .KEY can be converted to formats such as .PDF, .PPTX directly in your web browser.

What should I do if a .KEY file is corrupted or won't open?

If your .KEY file displays an invalid header or signature error, check its magic bytes hex header (Varies) using OpenAnyFile's Magic Byte Detector or follow our step-by-step file repair guide.

How do I open .KEY files?

You can open .KEY files using Apple Keynote (macOS / iOS), iCloud Keynote Web App, LibreOffice Impress.

Documents • MIME: application/x-iwork-keynote-sffkey

.KEY – KEY File Format

Q: What is a .KEY file?

A .KEY file is a KEY File Format associated with Documents. KEY is the presentation slideshow file created by Apple Keynote, featuring cinema-quality transitions, typographic effects, and multi-layered slide objects.

KEY is the presentation slideshow file created by Apple Keynote, featuring cinema-quality transitions, typographic effects, and multi-layered slide objects.

Primary Category Documents

MIME Type application/x-iwork-keynote-sffkey

Magic Bytes Signature Varies

Security Risk Rating Low Risk

Recommended Software to Open .KEY

Apple Keynote (macOS / iOS)

windows, mac, linux • Free

iCloud Keynote Web App

windows, mac, linux • Free

LibreOffice Impress

windows, mac, linux • Free