You mentioned seeking a file. Digital files with the .cia extension are packed installation packages specifically designed for custom firmware (CFW) on the Nintendo 3DS environment.
Pokémon Omega Ruby is a mandatory software patch released for the Nintendo 3DS to enable online features and improve stability. Key Features of Update v1.4 pokemon omega ruby update 14 3ds usa cia r free
If I have any criticisms, it's that the game can feel a bit formulaic at times, and some of the side quests feel like filler. However, these are minor quibbles in what is otherwise an excellent game. You mentioned seeking a file