Ensure you have the complete set. If the archive is 5GB and you only have the 1GB part1, extraction will fail.
Below is a blog post explaining what this file is, how to handle it, and the security risks associated with it. Navigating Multi-Part Archives: What is Land101.part1.rar? land101.part1.rar
Files found in split archives, especially from unverified third-party sources, carry a high risk of containing malware or unwanted "bloatware." Ensure you have the complete set