EXE

from Jargon File (4.4.4, 14 Aug 2003)

EXE
 /eks'ee/, /eek'see/, /E.X.E/, n.

   An executable binary file. Some operating systems (notably MS-DOS,
   VMS, and TWENEX) use the extension .EXE to mark such files. This usage
   is also occasionally found among Unix programmers even though Unix
   executables don't have any required suffix.

from The Free On-line Dictionary of Computing (8 July 2008)

EXE

   /eks'ee/ or /eek'see/ or /E-X-E/ An executable binary file.
   Some operating systems (notably {MS-DOS}, VMS, and TWENEX) use
   the extension .EXE to mark such files.  This usage is also
   occasionally found among Unix programmers even though Unix
   executables don't have any required suffix.

   [{Jargon File}]

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