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Information about PPSX file format

Name PPSX
Full name PowerPoint Open XML Slide Show
File extension .ppsx
MIME type application/vnd.openxmlformats-officedocument.presentationml.presentation
Developed by Microsoft
Type of format Document File
Description PPSX is a PowerPoint Open XML Slide Show - it is primarily designed to be non-editable and to simply playback the Powerpoint presentation. It differs from PPTX which allows for the file to be editable. The 'X' extension refers to Microsoft Office 2007, 2010 and 2012 which ZIP compress the file and is therefore different from the previous versions which were generally have larger file sizes.
Technical details PPSX are compressed and based on the ECMA-376 standard for Office Open XML. It supports Text, Images, Audio and Video and is stored in a zipped directory format which matches the OPC structure. Just like the PPTX format the PPSX format improves file sizing, data recovery and data management and allows for other applications to interact with it due to the XML structure.
Associated programs Apple Keynote, Microsoft PowerPoint, OpenOffice
Wiki http://en.wikipedia.org/wiki/Microsoft_PowerPoint
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