: Use software like WinRAR or 7-Zip on your PC. Select all parts (Part 1, Part 2, etc.), right-click, and select "Extract Here." This will merge them into a single large .nsp file.
: You can add further content like the Future Redeemed expansion, though these will usually be separate NSP files that you install after the base game. Xenoblade Chronicles 3 (NSP)(Converted).part2 (...
: Both English and Japanese voice tracks are typically included in the base file. : Use software like WinRAR or 7-Zip on your PC