The software will automatically pull data from part2 and all subsequent parts to recreate the original full-sized folder.
Use a tool like WinRAR or 7-Zip and select or "Extract Files..." .
: You need all accompanying files (e.g., part1.rar , part2.rar , etc.) in the same folder for the extraction to work. Extracting : Right-click on part1.rar (the first file in the sequence).