Convert pps to ppt (PowerPoint SlideShow to regular PowerPoint)

To convert a PowerPoint SlideShow file (.pps) to a regular PowerPoint file, just rename the file extension from .pps to .ppt. That’s it! This works the other way round too i.e. from .ppt to .pps.
I checked with multiple .pps and .ppt files and they were exactly the same after conversion, even the file size. I did not realize that it was this simple. I thought PowerPoint does some kind of conversion when saving a .ppt file as .pps. But apparently, it just renames/changes the file extension.
More info: