The suffix .part1.rar indicates that the original data has been split into multiple pieces (e.g., part1, part2, part3). This is a common practice for large modern games like Pokémon Violet (which has a base size of approximately 6-7 GB) for several reasons:
A campaign against the rebellious Team Star. Pokemon Violet (NSP)(Base Game).part1.rar
File-sharing platforms often have individual file size caps. The suffix