matic4dThere 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 Points panel. [1] Go to the Menu bar and select File >Corrupted installation or Preview version. Ensure that the latest stable version is installed correctly. Uninstall PIX4Dmatic (How to completely uninstall PIX4Dmatic) or