Comparison of executable file formats

This is a comparison of executable file formats.

	Icon	Metadata	Digital signature	String table	Symbol table	64-bit	Multiple architectures in single file
a.out	No	No	No	Yes	Yes	Un­known	Un­known
COFF	No	No	No	Yes	Yes	Un­known	Un­known
ELF	No	Yes	No	Yes	Yes	Yes	Some
PE	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Mach-O	No	Yes	Yes	Yes	Yes	Yes	Yes
SOM	No	No	No	Un­known	Yes	No	Un­known
Hunk	No	Yes	No	Un­known	Un­known	No	No
DOS MZ	No	No	No	Un­known	Un­known	No	No
DOS COM	No	No	No	No	No	No	No
PEF	No	No	No	Un­known	Yes	No	No
ECOFF	Un­known	Un­known	Un­known	Yes	Yes	Yes	Un­known
XCOFF	Un­known	Un­known	Un­known	Yes	Yes	Yes	Un­known
OS/2 LX	Yes	Un­known	Un­known	No	Yes	No	No