Category
Executables File Signatures
Executable, library, and bytecode formats — Windows PE, ELF, Mach-O, Java class, WebAssembly — and their identifying headers.
27 formats in this category
.a
A
Primary Hex
3D 3C 61 72 3E
.aar
AAR
Primary Hex
50 4B 03 04
.apk
Android package
Primary Hex
50 4B 03 04
.axf
AXF
Primary Hex
7F 45 4C 46
.class
Java bytecode file
Primary Hex
CA FE BA BE
.com
Windows/DOS executable file
Primary Hex
4D 5A
.cpl
Control panel application
Primary Hex
4D 5A
.dex
Dalvik executable file
Primary Hex
64 65 78 0A
.dll
Windows/DOS executable file
Primary Hex
4D 5A
.drv
Windows/DOS executable file
Primary Hex
4D 5A
.elf
ELF
Primary Hex
7F 45 4C 46
.exe
Windows/DOS executable file
Primary Hex
4D 5A
.jar
Java archive; compressed file package for classes and data
Primary Hex
50 4B 03 04
.ko
KO
Primary Hex
7F 45 4C 46
.msi
Microsoft Installer package
Primary Hex
D0 CF 11 E0 A1 B1 1A E1
.none
NONE
Primary Hex
7F 45 4C 46
.o
O
Primary Hex
7F 45 4C 46
.ocx
ActiveX or OLE Custom Control
Primary Hex
4D 5A
.out
OUT
Primary Hex
7F 45 4C 46
.prx
PRX
Primary Hex
7F 45 4C 46
.puff
PUFF
Primary Hex
7F 45 4C 46
.qts
Windows/DOS executable file
Primary Hex
4D 5A
.qtx
Windows/DOS executable file
Primary Hex
4D 5A
.scr
Screen saver
Primary Hex
4D 5A
.so
SO
Primary Hex
7F 45 4C 46
.sys
Windows/DOS executable file
Primary Hex
4D 5A
.wasm
Wasm
Primary Hex
00 61 73 6D