For better compatibility reasons you might want to resave your PPTX to older PPT format. You might loose some special effects and formatting that is exclusive to the latest PowerPoint.
Convert Microsoft PowerPoint Open XML presentation to Microsoft PowerPoint 97 to 2003 presentation.
We found 11 software records in the database related to .pptx to .ppt file format conversion.
Microsoft Windows software - convert pptx to ppt on Windows
A presentation program from the Microsoft Office suite
Convert from pptx file format
|Yes, Microsoft PowerPoint supports pptx file conversion as a source file type.||Yes||Yes||pptx editor||Yes||No||No||No|
|Yes, Microsoft PowerPoint supports ppt file conversion as a target file type.||Yes||Yes||ppt 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 pptx to ppt. 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.
An universal picture and document converter
A free set of productivity tools for creating and editing of various documents, spreadsheets or presentations from IBM
A presentation graphics application from Corel WordPerfect Office
One of the many available document converters
Apple macOS / Mac OS X software - convert pptx to ppt on OS X
Mac version of popular presentation software from Microsoft
The most popular presentation software for Mac
Windows Mobile/CE software - convert pptx to ppt on Windows Mobile
A fully working office suite for Windows Phone smart phones
Blackberry mobile phones and devices software - convert pptx to ppt on Blackberry
Office suite app for BlackBerry devices.
Multiplatform software - convert pptx to ppt on any platform
Powerful multimedia presentation software tool from LibreOffice suite
Free presentation program from OpenOffice.org