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.
ACE
application/x-ace-compressed
Primary Hex
2A 2A 41 43 45 2A 2A
ACFM
application/x-font-adobe-metric
Primary Hex
53 74 61 72 74 46 6F 6E 74 4D 65 74 72 69 63 73
MS audio compression manager driver
N/A
Primary Hex
4D 5A
MS Agent Character file
N/A
Primary Hex
C3 AB CD AB
Amiga Disk File (ADF)
application/x-amiga-disk-format
Primary Hex
44 4F 53
Access project file
N/A
Primary Hex
D0 CF 11 E0 A1 B1 1A E1
ADXlossy compressed audio file
N/A
Primary Hex
03 00 00 00 41 50 50 52
AES Cryptfile format
N/A
Primary Hex
41 45 53
AFF
N/A
Primary Hex
41 46 46