When you open an .ppm .ppm.png document with Windows Notepad, Windows Ink 2, or the free online PPM viewer, you see a standard Microsoft Word document, and it automatically converts it to a PPM file. It's not a magic. There are many ways to open PPM files and, in fact, there are some Windows programs available to perform these tasks (see below). The purpose of this article is to explain the many tools available and their uses. What types of software are available to perform these jobs? Open PPM File Open PPM file with the best free PPM file viewers. Free. What do I do if I think some program creates a PPM file? Should I manually do this? If you think some program is duplicating or corrupting a PPM file, you can remove the PPM file by following the procedure below. The procedure should work in PowerPoint 2023 through PowerPoint 2020. In PowerPoint 2023 and PowerPoint 2013, Windows may require that you click a toolbar on the top of the app and go to “Extensions and Updates” to get these types of Ppm removed. You can do this by clicking on the “Toolbox” icon on the top right of PowerPoint. If I don't understand how a program works by following the instructions in the section above, how about searching the online PPM Directory? Click on the “search” button at the top right of the “What do I do if I think some program creates a PPM?” link to see if there are any programs like your free PPM viewer that help you identify a PPM file.