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.
123
Primary Hex
00 00 1A 00 03 10 04 00
3DS
Primary Hex
4D 4D
3G2
Primary Hex
66 74 79 70 33 67 32 61
3GP
Primary Hex
66 74 79 70 33 67 65 36
7Z
Primary Hex
37 7A
A
Primary Hex
3D 3C 61 72 3E
MPEG-4 Advanced Audio Coding
Primary Hex
FF F1
AAR
Primary Hex
50 4B 03 04
Palm Address Book Archive file
Primary Hex
00 01 42 41
Quicken data file
Primary Hex
51 57 20 56 65 72 2E 20
AOL address book index file
Primary Hex
41 4F 4C 49 4E 44 45 58
Analog Boxcircuit files
Primary Hex
41 42 6F 78
AOL database files: address book
Primary Hex
41 4F 4C 44 42
Dwg
Primary Hex
41 43 31 30
AC3
Primary Hex
0B 77
ACBM
Primary Hex
46 4F 52 4D
Microsoft Access 2007 file
Primary Hex
00 01 00 00 53 74 61 6E 64 61 72 64 20 41 43 45 20 44 42
Sonic Foundry Acid Music File
Primary Hex
72 69 66 66
ACE
Primary Hex
2A 2A 41 43 45 2A 2A
ACFM
Primary Hex
53 74 61 72 74 46 6F 6E 74 4D 65 74 72 69 63 73
MS audio compression manager driver
Primary Hex
4D 5A
MS Agent Character file
Primary Hex
C3 AB CD AB
Amiga Disk File (ADF)
Primary Hex
44 4F 53
Access project file
Primary Hex
D0 CF 11 E0 A1 B1 1A E1