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.
An Object Linking and Embedding
Primary Hex
D0 CF 11 E0 A1 B1 1A E1
PowerPoint presentation subheader
Primary Hex
D0 CF 11 E0 A1 B1 1A E1
Microsoft Office Open XML Format
Primary Hex
50 4B 03 04
Powerpoint Packaged Presentation
Primary Hex
D0 CF 11 E0 A1 B1 1A E1
MobiPocket eBook (MOBI)
Primary Hex
42 4F 4F 4B 4D 4F 42 49
PRT
Primary Hex
30 4D 33 43
PRX
Primary Hex
7F 45 4C 46
PostScript file
Primary Hex
25 21
PSAFE3
Primary Hex
50 57 53 33
Photoshop image file
Primary Hex
38 42 50 53
PSF1
Primary Hex
50 53 46
PSFLIB
Primary Hex
50 53 46
Corel Paint Shop Pro image file
Primary Hex
7E 42 4B 00
OutlookPersonalStorage
Primary Hex
21 42 44 4E
SSH2 public key (RFC 4716)
Primary Hex
2D 2D 2D 2D 2D 42 45 47 49 4E 20 53 53 48 32 20 4B 45 59 2D 2D 2D 2D 2D
Pufferencrypted archive
Primary Hex
50 55 46 58
PUFF
Primary Hex
7F 45 4C 46
Microsoft Windows Mobile personal note file
Primary Hex
7B 5C 70 77 69
Windows 95 password file
Primary Hex
B0 4D 46 43
PWRDATA
Primary Hex
70 77 72 64 61 74 61
PY
Primary Hex
23 21 2F 62 69 6E 2F 70 79 74 68 6F 6E
Intuit QuickBooks backup file
Primary Hex
45 86 00 00 06 00
QuickBooks Portable Company File
Primary Hex
D0 CF 11 E0 A1 B1 1A E1
QCOW
Primary Hex
51 46 49