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Category

CAD & 3D File Signatures

Computer-aided design and 3D model formats including STL, OBJ, STEP, FBX, and glTF, with reliable detection.

8 formats in this category

.3ds

3DS

Safe

Primary Hex

4D 4D
.blend

BLEND

Safe

Primary Hex

42 4C 45 4E 44 45 52
.dwf

DWF

Safe

Primary Hex

28 44 57 46 20 56
.e57

E57

Safe

Primary Hex

41 53 54 4D 2D 45 35 37
.glb

GLB

Safe

Primary Hex

67 6C 54 46
.obj

MicrosoftCommon Object File Format

Safe

Primary Hex

4C 01
.stl

ASCIISTL

Safe

Primary Hex

73 6F 6C 69 64
.usdz

USDZ

Safe

Primary Hex

50 4B 03 04