PRPROJ file is an Adobe Premiere Pro Project. Adobe Premiere Pro is a video editing software application for non-linear video editing, published by Adobe Systems.

Common .prproj file type descriptions:

Adobe Premiere Project

Applications, associated with .prproj files

.prpreset

.prs

	Adobe Premiere by Adobe Systems®, Incorporated
	Movie Studio Platinum by Sony
	Adobe Premiere Pro Support Library by Adobe Systems®, Incorporated
	Adobe After Effects by Adobe Systems®, Incorporated
	Adobe Premiere Pro CC 2015.3 by Adobe Systems®, Incorporated
	Adobe Premiere Pro CC 2017.0 by Adobe Systems®, Incorporated