What Is a PPSM File Extension?

How to open, edit, and convert PPSM files

A file with the PPSM file extension is a Microsoft PowerPoint Open XML Macro-enabled Slide Show file created with Microsoft PowerPoint. They open by default in the slideshow view to immediately launch the slideshow presentation. The format uses a combination of XML and ZIP to store its contents.

How to Open a PPSM File

PPSM files can be opened using PowerPoint, but only if it is version 2007 or newer. Opening one in an older version of PowerPoint requires the free Microsoft Office Compatibility Pack to be installed.

You can also open this file format without PowerPoint using Microsoft's free PowerPoint Viewer program. 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 also open these files.

You can still edit PPSM files by right-clicking the file and choosing New (which opens the file in PowerPoint), or by opening the program first and then browsing for the file from there.

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 to a single PDF file, another option is to do it online with Online2PDF.com. You can render each slide as a separate page in the PDF file, or you can choose to build separate PDF files for each slide.

PPTM is a very similar macro-enabled file format used with PowerPoint, but one that opens in edit mode when double-clicked rather than launching the presentation. Two other formats you may see in PowerPoint are PPTX and PPSX. Neither of them can run macros, unlike PPSM and PPTM; however, PPSX opens in slideshow mode automatically like PPSM, while PPTX does not.

Still Can't Open the File?

If your PPSM file doesn't open with those 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 PowerPoint or presentation files in general.

PP is one example. It's used by the Pocket Physics Nintendo DS application as a sketch file. It won't, therefore, open in any of the programs linked above and has nothing to do with a slideshow.

Some other examples include PRST, PSM, PS, PPR, and PPM. As related as they may seem, they're used by different file formats and so can't be opened with the same applications.

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