: Use a utility like WinRAR, 7-Zip , or The Unarchiver (for Mac).
: You cannot open part 4 by itself. You must have all other parts (e.g., part01.rar , part02.rar , part03.rar , etc.) in the same folder .
The file is the fourth segment of a larger multi-part compressed archive.
: Open only the first file in the sequence (usually part01.rar ). Your extraction software will automatically "stitch" all the pieces together into the original full-sized file.
Do you have the of this archive, or are you having trouble locating the first file ?