- Nov 1, 2018
What is the program to use? Its says need file xtension.First, you must be on a windows computer. Second, open the instructions text file to find the unpack and pack codes. Copy the unpack or pack (unpack for nsb opening and pack for closing) code into cmd by clicking the cmd file and paste it. Press enter. When your done and you pack the nsb, a file will show named nsb.txt.sav. Rename the entire file to nsb.