These are digital installation files derived from the Nintendo eShop. They are usually smaller in size because they do not include "padding" (empty space) used on physical cartridges.
These are direct dumps from physical game cartridges. Because cartridges have standard sizes (e.g., 8GB or 16GB), an XCI file might be larger than the actual game data due to empty padding. Regional Versions
When looking for digital copies of Rune Factory 5, you will typically encounter two primary formats. While they contain the same game data, they differ in how they were originally packaged: