You usually do not need to do anything specific with "Part 2" text-wise. You simply right-click Part 1 and select "Extract Here." The extraction software (like WinRAR or 7-Zip) will automatically pull the data from Part 2 and subsequent parts to recreate the full game folder.
When a game like Jurassic World Evolution 2 is downloaded in parts (Part 1, Part 2, etc.), the computer treats them as a single continuous archive. jurassic-world-evolution-2-part2-rar
While this could be a request for help with a game installation, I am answering for the most likely case: that you are looking for regarding a multi-part archive for this game. Common Context for "Part 2" RAR Files You usually do not need to do anything
You could be looking for text instructions or "read me" documentation on how to combine multiple parts of a game download . While this could be a request for help
You may simply want general text descriptions, patch notes, or content details specifically for the Jurassic World Evolution 2 sequel or its DLCs.