nix4dThere are three methods to import a tie point .csv or .txt file into PIX4Dmatic. One is accessible through the File tab in the main header, and the others are accessible from the Tie PointsA project from A to Z. Getting Started Index - PIX4Dmapper; Step 1. Before Starting a Project - PIX4Dmapper; Step 1. Before Starting a Project > 1. Desning the Image Acquisition Plan