Right-click on Part 1 only . If you use a tool like WinRAR or 7-Zip, selecting "Extract Here" on the first file will automatically pull the data from all subsequent parts (including your part2 ) to recreate the full folder.
To get the contents out of that specific part2 file, you actually have to treat the whole set as one unit. Here’s a quick guide on how to handle it and why it’s structured that way. How to Extract Multi-Part Files Campsitepack1.part2.rar
You can't usually extract part2 by itself; the data is "stitched" across all parts. To open it, follow these steps: Right-click on Part 1 only