Considering both .ppsm and .pptx files are from PowerPoint, you can simply re-save (File → Save as..) PPSM presentations to PPTX format using Microsoft PowerPoint or similar presentation software that support of PowerPoint formats. You can even do this ppsm to pptx conversion with some online document converters.
Home > Search converters: ppsm to pptx
Conversion of ppsm file format to pptx file format beta
Search for ppsm to pptx converter or software able to handle these file types.
Convert Microsoft PowerPoint macro-enabled Open XML complete slide show to Microsoft PowerPoint Open XML presentation.
We have found 2 software records in our database eligible for .ppsm to .pptx file format conversion.
Microsoft Windows software 
- convert ppsm to pptx on Windows
Microsoft PowerPoint
A presentation program from the Microsoft Office suite
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from ppsm file | No | Yes | Yes | ppsm editor | Yes | No | No | No |
to pptx file | Yes, Microsoft PowerPoint 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 ppsm 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.
Apple macOS / Mac OS X software 
- convert ppsm to pptx on OS X
Microsoft PowerPoint for Mac
Mac version of popular presentation software from Microsoft
Additional links: Open ppsm file, Open pptx file
PPSM
Files with ppsm extension are generally slide shows created in latest Microsoft PowerPoint presentations creator. These slideshows have macros enabled.
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.
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