Apple iWork Keynote theme file
File type: Document file
A .kth file is a theme file for Keynote, Apple's presentation software for macOS.
It provides a predefined design that can be used when creating a new presentation.
File type category:
Document file
Date updated: November 3, 2026
The .kth file extension is associated with Apple Keynote, part of the iWork productivity suite. A Keynote theme contains presentation design settings, including layouts and other formatting choices, so presentations can be created with a consistent appearance.
Keynote for Mac uses these files as reusable themes rather than as finished presentations. The format remains associated with the macOS version of Keynote.
Open a .kth file on macOS with Keynote. Double-clicking the file usually opens it in Keynote, where it can be used as a theme for a new presentation.
A .kth file is a theme rather than a finished presentation, so it normally has no useful direct conversion. Open it in Keynote and create a presentation from the theme.
The resulting presentation can then be exported from Keynote to a supported presentation or document format, such as PowerPoint or PDF.
Software applications that can open kth files:
Apple macOS / Mac OS X
Software applications that can edit kth files:
Apple macOS / Mac OS X
Software capable of saving kth files:
Apple macOS / Mac OS X
Programs for viewing kth files:
Apple macOS / Mac OS X
Software apps that create kth files:
Apple macOS / Mac OS X
Online conversions and file conversion information are provided by 101convert.com.
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