If you are looking at this specific file, here is what the naming conventions mean in the Nintendo Switch emulation and homebrew community: The title of the game.
Indicates that this is the base version of the game (version 0), without any added update patches or DLC. Sakura Cupid [010078501A318000][v0][US].nsp.rar
Lilim, a lazy cupid who was exiled from Heaven for neglecting her duties. Instead of feeling ashamed, she is thrilled to finally have time to indulge in her favorite hobbies: reading comics and watching TV. If you are looking at this specific file,
Denotes that this is the North American region release of the game. Instead of feeling ashamed, she is thrilled to
Downloading and sharing copyrighted game files (ROMs, NSPs, and XCIs) from third-party sites violates copyright laws and carries risks of malware. The safest and legal way to play Sakura Cupid is to purchase it through official storefronts like the Steam Store or the official Nintendo eShop. Sakura Cupid - Now on Steam (Patch Info) - Patreon
Players can achieve several different endings, including specific character endings for Mitsuki or Serra, and a Harem ending.