The File Menu contains the tools you use to open, close and save new and existing files, and import and export graphics. The File Menu lists: New, Open, Save, Import Picture, Export Picture, Print, Print Picture and Exit.
New.- This command is to begin a new simulation, deleting all that has been made previously.
Save the work with the Save command before clicking the New command. The program doesn't allow to open two files at the same time. This way, we can optimize the available memory and the calculation speed.