The My Files submenu will let you see all of the programs you 
have made on the NXT or downloaded from your computer.
Software les - programs 
you have downloaded 
from your computer
NXT les - programs you 
have made on the NXT
Sound les Datalog les – les 
generated when you use 
datalog
Files will automatically be placed in the appropriate subfolders. When you  
download a program including a sound le to your NXT, the program will be 
placed under Software les, while the sound data will be placed under Sound 
les. You can send les to other NXTs. Read more about this on page 44.