also why doesn’t changing the file name from .pptx to .pdf work ?
In: Technology
In addition to the other answers, which are correct, I want to point out something interesting.
As you know, the file extension is just a hint for the system to know which program to use, and the program knows how to read it.
Some file extensions *can* actually be renamed because the data inside is the same. For example you can rename a .PPTX to .zip, and open it up like a zip file to see all the pictures and other stuff inside. Try it yourself!
This is because a pptx file is essentially a zip file, the .pptx extension just tells the system to open it in PowerPoint and PowerPoint knows what to do with it.
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