What is a PPSM File?

How to Open, Edit, & Convert PPSM Files

PPSM Files
PPSM Files.

A file with the PPSM file extension is a Microsoft PowerPoint Open XML Macro-Enabled Slide Show file created with Microsoft PowerPoint. The format uses a combination of XML and ZIP to store its contents.

PPTM is a very similar macro-enabled file format used with PowerPoint with the difference being that files of that type will open in edit mode when double-clicked, while PPSM files open by default in slideshow view, meaning the slideshow immediately starts upon launch.

Two other formats you may see in PowerPoint are PPTX and PPSX. Unlike PPSM and PPTM, neither of these formats can run macros. However, the latter opens in slideshow mode automatically like PPSM while the former does not.

How To Open a PPSM File

PPSM files can be opened using Microsoft PowerPoint, but only if it's version 2007 or newer. Opening a PPSM file in an older version of PowerPoint requires that the free Microsoft Office Compatibility Pack be installed.

Tip: PPSM files open in a way that makes them uneditable - they open straight to the slideshow. However, you can still edit them either by right-clicking the file and choosing New (which opens the file in PowerPoint) or by opening PowerPoint first and then browsing for the PPSM file.

You can also open PPSM file without PowerPoint with Microsoft's free PowerPoint Viewer program. I know that the Presentations program that's a part of the SoftMaker FreeOffice office suite will open PPSM files as well, and there may be other free presentation programs that can too.

Note: If your PPSM file doesn't open with these slideshow programs, make sure you're not misreading the file extension. Some files use a similar file extension but have nothing at all to do with MS PowerPoint or presentation files in general. PP, PRST, PSM, PS, PPR, and PPM files are just a few examples.

If you find that an application on your PC does try to open the PPSM file but it's the wrong application or if you would rather have another installed program open PPSM files, see my How To Change the Default Program for a Specific File Extension guide for making that change in Windows.

How To Convert a PPSM File

Opening a PPSM file in PowerPoint lets you save it to a different format through the File > Save As menu. You can pick from lots of formats like PPTX, PDF, PPT, PPTM, POTM, and ODP.

You can even use PowerPoint to convert PPSM to a video format (MP4 or WMV). Just use the File > Export > Create a Video menu item.

If you want to convert your PPSM file to a single PDF file, another option is to do it online with Online2PDF.com. You can do it so that only one PDF is made where each page represents a slide or you can choose to build a separate PDF for each slide.

More Help With PPSM Files

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what kinds of problems you're having with opening or using the PPSM file and I'll see what I can do to help.