: Use a program like WinRAR (Windows), The Unarchiver (Mac), or 7-Zip (Windows/Linux).
: Right-click only on DJ357Iluos.part1.rar and select "Extract Here" or "Extract to [Folder Name]" . The software will automatically find the other parts and stitch them back together into the original file.
: You must have every single part of the set (e.g., part1.rar , part2.rar , part3.rar , etc.) in the same folder on your computer. If you are missing even one part, the extraction will fail.
: You are missing one of the numbered parts in the sequence.