Known File Extensions

.base: "Animation template file"

.ob3: "Jagex model file"

.ob2: legacy model file format

.jgd: "JGD text file" Jaged model

.anim: Animation frames

.jm2: Map

.synth: Sound effects

.area

.constant / .macro

.cs2: ClientScript

.enum: Enumerations

.flo: Floor overlay

.flu: Floor underlay

.headbar

.hitmark

.hunt: Hunt mode

.idk: Identity kit

.inv: Inventory

.loc: Location

.npc: Npc

.obj: Object

.param: Parameters

.rs2: RuneScript

.seq: Sequence

.spotanim: Spot animation

.varp: Player variables

.varbit: Player bit variables

.varn: Npc variables

.varnbit: Npc bit variables

.vars: Shared (world) variables

.varsbit: Shared (world) bit variables

.varobj: Object variables

.varobjbit: Object bit variables