Header Byte Identification
Magic Byte Lookup
Paste the first bytes of a file as hex to find matching formats, MIME types, byte offsets, and risk levels. This lookup checks header signatures; trailer-only signatures are documented on their format pages.
Matching Formats
47 candidates matched the supplied bytes. Shared containers can produce multiple results.
AAR
Matched Signature
50 4B 03 04
Android package
Matched Signature
50 4B 03 04
ASICE
Matched Signature
50 4B 03 04
ASICS
Matched Signature
50 4B 03 04
Microsoft Office Open XML Format
Matched Signature
50 4B 03 04
Open Publication Structure eBook file
Matched Signature
50 4B 03 04
IBOOKS
Matched Signature
50 4B 03 04
IPA
Matched Signature
50 4B 03 04
Java archive; compressed file package for classes and data
Matched Signature
50 4B 03 04
Google Earth saved working session file
Matched Signature
50 4B 03 04
KWord document
Matched Signature
50 4B 03 04
MAFF
Matched Signature
50 4B 03 04
MSIX
Matched Signature
50 4B 03 04
OpenDocument text document
Matched Signature
50 4B 03 04
OpenDocumentSpreadsheet
Matched Signature
50 4B 03 04
OpenDocument text document
Matched Signature
50 4B 03 04
OpenDocument text document
Matched Signature
50 4B 03 04
Microsoft Open XML paper specification file
Matched Signature
50 4B 03 04
PK3
Matched Signature
50 4B 03 04
PK4
Matched Signature
50 4B 03 04
Microsoft Office Open XML Format
Matched Signature
50 4B 03 04
OpenOffice spreadsheet
Matched Signature
50 4B 03 04
OpenOffice spreadsheet
Matched Signature
50 4B 03 04
OpenOffice spreadsheet
Matched Signature
50 4B 03 04
OpenOffice spreadsheet
Matched Signature
50 4B 03 04
USDZ
Matched Signature
50 4B 03 04
VSDX
Matched Signature
50 4B 03 04
WHL
Matched Signature
50 4B 03 04
Windows Media compressed skin file
Matched Signature
50 4B 03 04
Microsoft Office Open XML Format
Matched Signature
50 4B 03 04
Mozilla Browser Archive
Matched Signature
50 4B 03 04
XML paper specification file
Matched Signature
50 4B 03 04
SAS Transport File
Matched Signature
50 4B 03 04
PKSFX self-extracting executable compressed file
Matched Signature
50 4B 03 04
ZIPX
Matched Signature
50 4B 03 04
ODC
Matched Signature
50 4B
ODF
Matched Signature
50 4B
ODFT
Matched Signature
50 4B
ODG
Matched Signature
50 4B
ODI
Matched Signature
50 4B
OTC
Matched Signature
50 4B
OTG
Matched Signature
50 4B
OTH
Matched Signature
50 4B
OTI
Matched Signature
50 4B
OTM
Matched Signature
50 4B
OTP
Matched Signature
50 4B
OTS
Matched Signature
50 4B