You only need to open or "extract" the first part ( part1 ). The extraction software will automatically detect and pull data from the remaining parts to reconstruct the original file. How to Open It
The .rar extension stands for "Roshal Archive," a proprietary compression format created by Eugene Roshal. It is known for having a higher compression ratio than standard ZIP files. ex02.part1.rar
Because Windows and macOS do not natively support the RAR format, you must use a third-party utility: You only need to open or "extract" the first part ( part1 )