nix4dOpen 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 displayedImport data from other Pix4D software or a .las or .laz file to PIX4Dsurvey and bine multiple datasets into the same project. Work with both imagery data and LiDAR point clouds.