You must have parts of the archive in the same folder. If the set has 10 parts, you need files named part1.rar through part10.rar .
Ensure all files have the exact same prefix ( Cbrl-021.partX.rar ). 2. Install an Extraction Tool Cbrl-021.part7.rar
The software will automatically find Part 2, Part 3, and eventually your to reconstruct the full original file. Troubleshooting You must have parts of the archive in the same folder