Ensure part1.rar , part2.rar , and any subsequent parts are in the same folder on your PC. Use a Modern Unzipper: Use a tool like WinRAR or 7-Zip .
This refers to the source website. Ziperto is a well-known repository for console ROMs and backups. POKLEGARC-NSwTcH--BASE--XCI-Ziperto.part2.rar
When dealing with files like POKLEGARC-NSwTcH--BASE--XCI , it is important to exercise caution: Ensure part1
To the uninitiated, this looks like gibberish. To a power user, it’s a detailed label: POKLEGARC-NSwTcH--BASE--XCI-Ziperto.part2.rar
Right-click on part1.rar and select "Extract Here." The software is designed to automatically recognize part2 and the rest of the sequence. It will pull data from all of them to create the final XCI file.