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
Primary Hex
66 74 79 70 4D 34 56 20
MA
Primary Hex
28 2A 2A
MAFF
Primary Hex
50 4B 03 04
MAN
Primary Hex
2E 5C 22
Windows Visual Stylesheet XML file
Primary Hex
3C 3F 78 6D 6C 20 76 65 72 73 69 6F 6E 3D
Microsoft/MSN MARC archive
Primary Hex
4D 41 52 31 00
MATLAB v5 workspace file
Primary Hex
4D 41 54 4C 41 42
MB
Primary Hex
28 2A 2A
MBOX
Primary Hex
46 72 6F 6D 20
Microsoft Access file
Primary Hex
00 01 00 00 53 74 61 6E 64 61 72 64 20 4A 65 74 20 44 42
Microsoft SQL Server 2000 database
Primary Hex
00 FF FF FF FF FF FF FF FF FF FF 00 00 02 00 01
Microsoft Document Imaging file
Primary Hex
45 50 2A 00
ME
Primary Hex
2E 5C 22
UnfinalizedMeasurement Data Format
Primary Hex
55 6E 46 69 6E 4D 46
MGW
Primary Hex
6D 61 69 6E 2E 62 73
MHT
Primary Hex
4D 49 4D 45 2D 56 65 72 73 69 6F 6E 3A 20 31 2E 30
MHTML
Primary Hex
4D 49 4D 45 2D 56 65 72 73 69 6F 6E 3A 20 31 2E 30
Musical Instrument Digital Interface
Primary Hex
4D 54 68 64
Musical Instrument Digital Interface
Primary Hex
4D 54 68 64
Adobe FrameMaker MIF document
Primary Hex
3C 4D 61 6B 65 72 46 69 6C 65
MIME
Primary Hex
23 21 20 72 6E 65 77 73
MINIGSF
Primary Hex
50 53 46
MINIPSF
Primary Hex
50 53 46
MINIPSF1
Primary Hex
50 53 46