If you are trying to use these files in a PHP environment for development, you must install the PECL RAR extension to programmatically handle these archives.
If any part is missing or named differently (e.g., in a different folder or missing the "part2" suffix), the extraction will fail. HpHp2.part1.rar
Look for the password on the site where you downloaded the file. If you are trying to use these files
: The native tool for RAR files, highly recommended for Windows users. HpHp2.part1.rar
Ensure all parts (part1, part2, etc.) are in the same folder and have identical names before the ".partX" suffix. One of the parts is corrupted.