.PXC File Extension
What is a PXC file?
Cache file created by Photodex ProShow, a program used for creating slideshows with digital photos; stores metadata about the slideshows materials, such as images, audio, and video information; allows faster access to information while editing .PSH slideshow files.
NOTE: PXC files are generated automatically when you load a ProShow slideshow, and they can be deleted at any time. You cannot recover lost content from PXC files.