You can simply resave PPTX presentations to PPS format in Microsoft PowerPoint using the File → Save as.. function. Same might be achieved in other presentation programs or even online conversion services.
Home > Search converters: pptx to pps
Conversion of pptx file format to pps file format beta
Search for pptx to pps converter or software able to handle these file types.
Convert Microsoft PowerPoint Open XML presentation to Microsoft PowerPoint 97 to 2003 complete slide show.
We have found 6 software records in our database eligible for .pptx to .pps file format conversion.
Microsoft Windows software 
- convert pptx to pps on Windows
Microsoft PowerPoint
A presentation program from the Microsoft Office suite
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from pptx file | Yes, Microsoft PowerPoint supports pptx file conversion as a source file type. | Yes | Yes | pptx editor | Yes | No | No | No |
to pps file | Yes, Microsoft PowerPoint supports pps file conversion as a target file type. | Yes | Yes | pps 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 pps. 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.
SoftMaker Presentations
A innovative presentation program from Softmaker Office suite
Apple macOS / Mac OS X software 
- convert pptx to pps on OS X
Microsoft PowerPoint for Mac
Mac version of popular presentation software from Microsoft
Keynote for Mac
The most popular presentation software for Mac
Windows Mobile/CE software - convert pptx to pps on Windows Mobile
SoftMaker Office for Windows Mobile
A fully working office suite for Windows Phone smart phones
Multiplatform software 
- convert pptx to pps on any platform
Apache OpenOffice Impress (OpenOffice.org Impress)
Free presentation program from OpenOffice.org
Additional links: Open pptx file, Open pps file
PPTX
Files with pptx extension are presentations from modern version of PowerPoint from Microsoft Office / Office 365. PowerPoint slide shows are basically set of screens which can include text, graphic, sounds or videos used for various presentation purposes.
PPS
Files with pps extension are presentations from Microsoft PowerPoint presentation software. PowerPoint's PPS slide shows are basically sequences of screens, often used for presentation purposes.
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