In summary: ellie-costume-07-legs.pak is a designed to replace the lower-body portion of Ellie’s 7th costume slot.
: "The Making of Ellie's Costume in 'The Last of Us': A Deep Dive into the Design Process. What does 'ellie-costume-07-legs.pak' reveal about the game's attention to detail? #TheLastOfUs #GameDevelopment #CharacterDesign" ellie-costume-07-legs.pak
The specific naming convention suggests a modular approach to character outfits: : Identifies the playable protagonist, Ellie Williams. In summary: ellie-costume-07-legs
: The standard Unreal Engine or general game archive format used to inject this content into the game's engine. Modding Ellie's Iconic Look ellie-costume-07-legs.pak