Once extraction is complete, you will have a new file. Depending on the file extension:
: Right-click on Part 1 ( ...part1.rar ). Do not start with Part 4. POKM-USA-CIA-RF-Ziperto.part4.rar
The software will automatically "stitch" Part 1, 2, 3, and 4 together to create one single file (usually a .cia , .3ds , or .nds file). Once extraction is complete, you will have a new file