.XCI (a raw image format that mimics a physical game cartridge). Packaging: .RAR Part 2 (one segment of a larger split archive). Technical Analysis of File Formats XCI vs. NSP:

Leo sat in the blue glow of his monitor, watching the progress bar for POKLEGARC-NSwTcH--BASE--XCI-Ziperto.part2.rar crawl toward 100%. He already had "part1" saved in a folder named "Hisui," a digital placeholder for the ancient Pokémon world he was desperate to visit.

: The file is a RAR archive, specifically a part of a multi-part archive (indicated by .part2 ) which is a common practice to split large files into smaller, more manageable pieces, especially for distribution over the internet.

: Indicates that this is the core game file (the base version) without any additional updates or DLC (Downloadable Content) pre-installed.