PowerPoint 2010 - What advantage is there to saving AS A SLIDE SHOW vs. regular presentation?

I notice that once you create a slide show file, you can't edit it without first opening PowerPoint.  What are the advantages to saving a file as a slide show file?
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Echo_SConnect With a Mentor Commented:
when you save as a slide show, the extension is PPSX.

Double-clicking a PPSX in Windows opens the presentation in slide show view, bypassing editing view.

Double-clicking a PPTX in Windows opens the presentation in editing view, so you see ribbons and tools for editing.

By the way, if you need to edit a PPSX, just open PowerPoint then use File | Open, navigate to the PPSX and open it. It will then open in editing view.
JSRWilsonConnect With a Mentor Commented:
As well as what Echo said if you add a modify password it allows users to play the show without any password dialogue and makes it harder for them to modify your work.
Just wanted to expand on the modify password a bit. If you have an XML-based PowerPoint file (that is, one with an X on the end of the extension -- like PPSX or PPTX) with a modify password applied, anyone can open it in PowerPoint 2003 and edit it there. PPT 2003 doesn't recognize that there is a modify password on the file.

Modify passwords on the XML file formats are a joke. It makes me angry that Microsoft sets up users this way to believe that their file is protected.

Then again, many people think that saving as slide show (PPSX) protects the presentation from modification also....
That's why I said "makes it HARDER"! I agree it's a joke but it does keep some people out.
Yes, I knew that. But I'm at the point where I think it's important for people to know what they're getting into because I don't think MSFT is ever going to do anything about the dismal protection options.

We're way off topic now, though. Sorry, brothertruffle880! Thanks for indulging us. ;-)
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