All File Signatures & Extensions
Search by extension, format name, or MIME type to jump straight to a canonical signature page with validation code and source attribution.
MPEG-4 video|QuickTime file
video/mp4
Primary Hex
66 74 79 70 4D 34 56 20
MA
application/mathematica
Primary Hex
28 2A 2A
MAFF
N/A
Primary Hex
50 4B 03 04 50 4B 05 06 50 4B 07 08
MAN
text/troff
Primary Hex
2E 5C 22
Windows Visual Stylesheet XML file
text/plain
Primary Hex
54 68 69 73 20 69 73 20 54 65 58 2C
Microsoft/MSN MARC archive
N/A
Primary Hex
4D 41 52 31 00
MATLAB v5 workspace file
application/x-matlab-data
Primary Hex
4D 41 54 4C 41 42
MB
application/mathematica
Primary Hex
28 2A 2A
MBOX
application/mbox
Primary Hex
46 72 6F 6D 20