Executable

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An executable is a file containing code that a computer can execute. It is a compiled application. The file extension of such a file is .exe, which is the abbreviation of executable.

[edit] File format

• DOS Executable
• 16-bit Next Executable
• Mixed 16/32-bit Linear Executable
• 32-bit Linear Executable
• 32-bit Portable Executable
• 64-bit Executable

[edit] First Characters

Executables have different magic numbers (first characters that define it) according to their file formats.

Executable File Format	First Characters	Hexadecimal
DOS Executable	MZ	0x4D5A
16-bit Next Executable	NE	no information
Mixed 16/32-bit Linear Executable	LE	no information
32-bit Linear Executable	LX	no information
32-bit Portable Executable	PE	no information
64-bit	no information	no information

[edit] See Also

• File extension
• File format