There are number of file formats (types) PowerPoint can save your slides to. If you take count of every single format, including the necessary and the irrelevant, then, the number is 28 for PowerPoint 2013, 26 for PowerPoint 2010, and 20 for PowerPoint 2011. Have you ever wondered what all those file types are? Should you even be concerned about them at all? We suggest you take a look for yourself referring to the following tutorials, based upon the version of PowerPoint you use:
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