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.
NB
Primary Hex
28 2A 2A
NVIDIA Scene Graph binary file
Primary Hex
23 4E 42 46
Nokia phone backup file
Primary Hex
CC 52 33 FC E9 2C 18 48 AF E3 36 30 1A 39 40 06
NetCDF (classic format, CDF-1)
Primary Hex
43 44 46 01
NES
Primary Hex
4E 45 53 1A
Nokia PC Suite Content Copier file
Primary Hex
03 00 00 00
NII
Primary Hex
6E 2B 31 00
NITF
Primary Hex
4E 49 54 46 30 31 2E 31 30
NONE
Primary Hex
7F 45 4C 46
Nero CD Compilation
Primary Hex
0E 4E 65 72 6F 49 53 4F
NROFF
Primary Hex
2E 5C 22
Lotus Notes database
Primary Hex
1A 00 00 04 00 00
National Imagery Transmission Format
Primary Hex
4E 49 54 46 30 31 2E 31 30
NUI
Primary Hex
4E 55 52 55 49 4D 47
NUP
Primary Hex
4E 55 52 55 49 4D 47
VMware BIOS
Primary Hex
4D 52 56 4E
O
Primary Hex
7F 45 4C 46
OAR
Primary Hex
4F 41 52
MicrosoftCommon Object File Format
Primary Hex
4C 01
OBT
Primary Hex
65 87 78 56
ActiveX or OLE Custom Control
Primary Hex
4D 5A
ODC
Primary Hex
50 4B
ODF
Primary Hex
50 4B
ODFT
Primary Hex
50 4B