If you are having trouble saving or finding your digitized file after scanning with the 3D touch probe, you may have to force Windows to save the file as a .txt file. To do this, either initially after the scan or after opening the file, save as and type your file name, followed by .txt and enclosed in quotes. For example...

"car.txt"

"model.txt"

This will force windows to save the file as a .txt, which can be easily recognized and opened.