iWok Keynote supports formats from Microsoft PowerPoint and can save Keynote presentations (*.key, *.keynote) to one PPTX, PPT, PPS and perhaps several other presentation formats. There is really no other way to do this, as files from Keynote are not supported outside iWorks.
Convert iWork Keynote '06 presentation to Microsoft PowerPoint Open XML presentation.
We have found 2 software records in our database eligible for .keynote to .pptx file format conversion.
Articles and other information relating to keynote into pptx conversion:
How to open and convert Keynote presentations online using iWork for iCloud - Using iWork for iCloud for making new and conversion of old Apple documents
Apple macOS / Mac OS X software - convert keynote to pptx on OS X
Apple Keynote is a profession presentation software for Mac OS X (macOS). It allows users to easily create rich presentations and slideshows. It is available for Mac, iOS and as on-line service. It exports presentations to PDF, QuickTime, JPEG, TIFF, PNG, HTML and PowerPoint formats.
Convert from keynote file
|Yes, Keynote for Mac supports keynote file conversion as a source file type.||Yes||Yes||keynote editor||Yes||No||No||No|
to pptx file
|Yes, Keynote for Mac supports pptx file conversion as a target file type.||Yes||Yes||pptx editor||Yes||No||No||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned keynote to pptx. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Multiplatform software - convert keynote to pptx on any platform
LibreOffice Impress is a complete multimedia presentation software that supports all modern presentation formats. It's an open source software that comes as an integral part of LibreOffice suite.