pik4dOpen PIX4Dmatic.; Click File on the menu bar.; Click Open...; On the pop-up Open Project, specify the location of the root.p4m file and click Open. (Optional) If images are not displayedGeneral PIX4Dmatic PIX4Dmatic is optimized for accurate and fast photogrammetric processing for large scale, corridor and terrestrial projects. PIX4Dsurvey