Based on the naming convention sc24121-CSPPIv003006.part1.rar , here is the relevant information regarding this type of archive:
Right-click the .part1.rar file and select "Extract Here" . The software will automatically pull data from all connected parts to recreate the original file. Common Troubleshooting sc24121-CSPPIv003006.part1.rar
These types of technical shared files are often password-protected. Common default passwords for such archives in the networking community include cisco , eve-ng , or the name of the forum where you found the link. Based on the naming convention sc24121-CSPPIv003006