File Formats

File formats used across the filesystems of NSMBU and NSLU

File Format	Known Extensions	Magic Bytes	Description	Compatible Tools
ELF	.elf / .rpx	7F 45 4C 46	The entire game's code, compiled to be ran by the Wii U	Ghidra / IDA Pro / CEMU
SARC	.sarc / .bfma	53 41 52 43	Archive Format	Switch Toolbox
FRES	.bfres	46 52 45 53	Binary Wii U Resources Archive Format	Switch Toolbox
FMDL	.bfmdl	46 4D 44 4C	Binary Wii U Model Format	Switch Toolbox
FSKL	.bfskl	46 53 4B 4C	Switch Toolbox Wii U Model Skeleton Export Format	Switch Toolbox
FSKLBONE	.bfbon	46 53 4B 4C 42 4F 4E 45	Switch Toolbox Wii U Model Skeleton Bone Export Format	Switch Toolbox
FMAT	.bfmat	46 4D 41 54	Switch Toolbox Wii U Model Material Export Format	Switch Toolbox
FSHP	.bfobj	46 53 48 50	Switch Toolbox Wii U Model Shape Export Format	Switch Toolbox
FTEX	.bftex	46 54 45 58	Binary Wii U Texture Format	Switch Toolbox
FTXP	.bftxp	46 54 58 50	Binary Wii U Texture Pattern Animation Format	Switch Toolbox
FSKA	.bfska	46 53 4B 41	Binary Wii U Skeletal Animation Format	Switch Toolbox
YAZ0	.szs / .yaz / .yaz0	59 61 7A 30	Compression Format	Switch Toolbox
FLAN	.bflan	46 4C 41 4E	Binary Wii U Layout Animation Format	Switch Toolbox
FLYT	.bflyt	46 4C 59 54	Binary Wii U Layout Format	Switch Toolbox
BFLIM	.bflim	-	Binary Wii U Layout Image Format	Switch Toolbox
GTX	.gtx	47 66 78 32	GX2 Texture Format	GTX Extractor
GSH	.gsh	47 66 78 32	GX2 Shader Format	-
RPRH	.dat	52 50 52 48	NSMBU Replay Data	-
RPSD	.dat	52 50 53 44	NSMBU Save Data (rp_savedata.dat file)	-
FFNT	.bffnt	46 46 4E 54	Binary Wii U Font Format	Switch Toolbox
MsgStdBn	.msbt	4D 73 67 53 74 64 42 6E	Text Archive Format	MSBT Editor Reloaded / Kuriimu
MsgPrjBn	.msbp	4D 73 67 50 72 6A 42 6E	Additional Text Data Format	-
FSAR	.bfsar	46 53 41 52	Binary Wii U Sound Archive Format	Citric Composer
FGRP	.bfgrp	46 47 52 50	Binary Wii U Sound Archive Group Format	Citric Composer
FSEQ	.bfseq	46 53 45 51	Binary Wii U Sound Sequence Format	Citric Composer
FWAV	.bfwav	46 57 41 56	Binary Wii U Wave Audio Format	Citric Composer
FWSD	.bfwsd	46 57 53 44	Binary Wii U Wave Sound Data Format	Citric Composer
FWAR	.bfwar	46 57 41 52	Binary Wii U Wave Archive Format	Citric Composer
FBNK	.bfbnk	46 42 4E 4B	Binary Wii U Instrument Bank Format	Citric Composer
EXBIN	.exbin	00 00 0B B8 00 00 03 E8	(?)	-
PARAM	.param	-	(?)	-
SPBD	.ptcl	53 50 42 44	Particle Data Format	Switch Toolbox
BAHS	.sharcfb	42 41 48 53	Binary Wii U Compiled Shaders Archive Format	Switch Toolbox (Partial)
AAHS	.sharc	41 41 48 53	Shaders Archive	Switch Toolbox (Partial)
ENVSET	.envset	30 2F 2F 3C	Plaintext Format used to allocate shaders to backgrounds	Any text editor of your choice
OPT	.opt	-	Binary Format used to apply particle and sound effects to backgrounds	-
AAMP	.bagldof / .baglenv / .bagllmap	41 41 4D 50	Binary Resource Parameter File Format	-
CAMERA	.camera	-	Used to define background offsets and scroll speeds	-
BTSND	.btsnd	-	Wii U Boot Sound File Format	wav2btsnd
ARC	.arc	78 9C	Archive Format	Switch Toolbox
H.264	.h264	-	Common Video Compression Format used for the Wii U app boot video (Not used on CEMU)	VLC Media Player
XML	.xml	(EF BB BF) 3C 3F 78 6D 6C	Common Markup Text Format for game metadata	Any text editor of your choice
TEXT	.txt	-	Common Plaintext Format used for preload.txt	Any text editor of your choice
TPIC	.tga	-	Image File Format for game metadata icons	Any image editor of your choice
BIN	.bin	-	Multiple Generic/Unknown Binary Data Formats	-

• File Magics are not always at the exact start of the file for some formats, they may be offset by data or headers of a parent file, such as files found inside BFRES files.