File types

These are the currently known file types and if known their contents. Type IDs come from keys. Bolded IDs are STU files., Italic IDs are Chunked files

Type	Name	Description	Added in
001
002	Map Data
003	EntityDefinition	STUEntityDefinition
004	Texture	Sometimes has a corresponding 04D file
006	Animation
007	Skeleton	Only has a teModelChunk_Skeleton (mskl) chunk
008	Material	teMaterial
00C	Model
00D	Effect	GFX
015	AnimCategory	STUAnimCategory
018	AnimBoneWeightMask	STUAnimBoneWeightMask
01A	ModelLook	STUModelLook
01B	StatescriptGraph	Defines the layout of a Statescipt script, STUStatescriptGraph
01F
020	AnimBlendTree	STUAnimBlendTree
021	AnimBlendTreeSet	STUAnimBlendTreeSet. Team4 sometimes calls this a "blend tree template set"
024	Statescript Priority	In m_priority
02C	Sound	STUSound
02D	SoundSwitchGroup	STUSoundSwitchGroup
02E	SoundSwitch	STUSoundSwitch
02F	SoundParameter	STUSoundParameter
030	SoundStateGroup	STUSoundStateGroup
031	SoundState	STUSoundState
032
039	MapCatalog	STUMapCatalog, binds 002 to 09F
03A
03B
03F	SoundWEMFile	WWise WEM
043	SoundBank	WWise BNK
045	UXIDLookup	STUUXIDLookup
049	ContactSet	STUContactSet
04A	Effect	Environment FX?
04B	JSON	ca_bundle.txt.signed
04C		Sound something? Ref'd by 02C. References 02F and 013
04D	TexturePayload	Has a corresponding 004 file
04E		Sound something? Ref'd by 04C. References 02E and 013
050	Font	Wrapped TTF / OTF
051	FontFamily	STUFontFamily
053
054	GenericSettings	STUGenericSettings_Base, Random data
055	SoundSpace	STUSoundSpace
058	ProgressionUnlocks	STUProgressionUnlocks
05A	UXScreen	STUUXScreen
05B
05E	UXResourceDictionary	STUUXResourceDictionary
05F	VoiceSet	STUVoiceSet
062	Stat	STUStat
063	Catalog	STUCatalog
064
065	MaterialEffect
066			1.48
068	Achievement	STUAchievement
070	VoiceLineSet	STUVoiceLineSet
071	Subtitle	Use to be a STU, is now a string in 1.52
072	LocaleSettings	STULocaleSettings
075	Hero	STUHero
078	VoiceStimulus	STUVoiceStimulus, a voice sound "trigger"
079	VoiceCategory	STUVoiceCategory
07A
07C	UXDisplayString
07F	Chat replacement	"gg ez" => "It's past my bedtime"
081
085	Shader Group	Same structure as 088, pixel + vertex
086	Shader Instance
087	Shader Code
088	Shader Source	Same structure as 085. Different structure on dev builds?
08E	Effect	Unknown Effect
08F	Effect	Animation Effect
090	ResourceKey	STUResourceKey
091			1.48
095	LogicalButton	m_logicalButton
096	System Mapping
097	RaycastType	STURaycastType
098	RaycastReceiver	STURaycastReceiver
09C	PackageBundle	Binary stream, use package offsets to find files
09D	Announcer
09E	Loadout	STULoadout (ability or weapon)
09F	MapHeader	STUMapHeader
0A0
0A2
0A3	SoundIntegrity	STUSoundIntegrity
0A5	Unlock	STUUnlock
0A6	SkinTheme	STUSkinTheme
0A8	EffectLook	STUEffectLook
0A9	String	Unlocalized
0AA	MapFont	STUMapFont
0AB
0AC	GamePadVibration	STUGamePadVibration, controller vibration curves
0AD	HeroWeapon	STUHeroWeapon, Skin weapon override
0AE
0B2	VoiceWEMFile	WWise WEM
0B3	MaterialData
0B5
0B6	Movie	Bink Video, has a 0BB file for Audio
0B7		STUUXLogicalButton
0BB	Video Audio	WWise WEM
0BC	Map Chunk
0BD	Lighting Manifest
0BE	Lighting Chunk
0BF	LineupPose	STULineupPose
0C0	GameRuleset	STUGameRuleset
0C2	Highlight Type
0C5	Game Mode	STUGameMode
0C6	GameRulesetSchema	STUGameRulesetSchema
0C7	Brawl
0C9		Sound something? Ref'd by 02C. Has arrays of 04E's
0CA
0CB	Shadow Data
0CC		Arcade (0EE) Descriptions
0CE	TeamColor	STUTeamColor
0CF	LootBox	STULootBox
0D0	VoiceConversation	STUVoiceConversation
0D4
0D5	Game Tips
0D6		Something to do with Retribution/Storm Rising. References 0D7
0D7		Retribution/Storm Rising enemy definitions? References NPCs STUHero. Referenced by 0D6
0D9	Brawl Name
0DC
0DF
0EB	Report Response	The message when a player you reported is punished or when you are punished
0EC	League Team	OWL team definition
0EE	Arcade	Arcade modes
0F1	Localized Texture	Localized to selected language.	1.22
0F8			1.35?
10D			1.35?
114		Graph Type (UX?)	1.44
116		UX Stuff	1.44
115			1.52
11A			1.39?
122			1.48
127		material of some kind?	1.48
12C			1.49
130			1.51

Removed Types

These types were present in previous versions but since removed.

Type	Name	Description	Removed in
00E	Light Data		1.7
00F	Shader Group Cache		1.10
010	Display String		?
013	DataFlow	STUDataFlow	1.48
014	AnimAlias	STUAnimAlias	1.48
025	GameMessage	STUGameMessage	1.48
02A	SoundFilter	STUSoundFilter	1.22
02B			1.14
033			1.14
034	Asset Thumbnail		?
036	UXLink	STUUXLink	1.48 (now virtual)
03E	Light Debug Data		?
04F			1.22
06F	Sound Owner		1.7
076	Skin	STUSkin	1.3 (now virtual)
077	AssetPackage	teAssetPackage	1.48
09B	Sound Binding		1.7
0A1			1.7
0AF		Enum > String Mutator? - UI stuff, references bunch of types	1.44
0B0	UXViewModelSchema	STUUXViewModelSchema	1.44
0C4	Brawl Information		1.5
0C8	RankedSeason	STURankedSeason	1.38

Binding Types

These types are references to data set during runtime, like named variables. For example, the game can set data to have tag 00000000001.01C, and then later reference that data in another process by using that GUID. This is so that the game engine can reuse data without creating a new instance of that data, and share it across multiple structures.

In other words, these types do not reference actual game data files, but rather virtual assets created in memory.

The target type can be strict (like 012) or it can be abstract (like 01C)

Type	Hex Type (LSB)	Name	Description
005	0200	Unknown Model Tag	Appears on STUModelComponent
012	0880	Skeleton Bone	Index matches up with a skeleton bone
016	0A80	Animation Group	STUAnimSynchGroup
01C	0D80	Identifier	STUIdentifier
036	0AC0	UXLink	STUUXLink (aka how a STUUXView or STUUXElement is loaded)
03C	0DC0	Hardpoint	STUModelHardpoint (aka attachment points or sockets)
06C	0D60	Target Tag	STUTargetTag
06D	0360	Unknown Model Tag	Appears on STUModelComponent
06E	0B60	Animation Identifier	STUAnimIdentifier
076	0AE0	Skin	STUSkin
0C3	0430	Celebration	STUCelebration
124	0C48	Sample Data	UX/Graph Sample Data?