This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
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Binary Data
Mathematica provides high-performance reading and writing of binary data, to both files and pipes. A convenient symbolic format representation makes it straightforward to translate published instrumentation or logging specifications to a form that can immediately be used in Mathematica.
BinaryRead read one binary object or block of objects
BinaryReadList repeatedly read a binary object or block of objects
BinaryWrite write a sequence of binary objects with specified types
    
Import, Export import, export complete binary files
    
Binary Types
"Bit" individual binary bits (Import, Export only)
"Byte" 8-bit unsigned integer
"Integer8", "Integer16", ... 8-, 16-, 24- 32-, 64-, 128-bit signed integers
"UnsignedInteger8", ... 8-, 16-, 24-, 32-, 64-, 128-bit unsigned integers
"Real32", "Real64", "Real128" IEEE single-, double-, quad-precision real numbers
"Complex64", "Complex128", "Complex256" IEEE complex numbers
"Character8", "Character16" 8- and 16-bit (Unicode) characters
"TerminatedString" null-terminated string
    
ByteOrdering option for byte ordering (+1 for big endian; -1 for little endian)
$ByteOrdering native byte ordering on your computer system
    
ToCharacterCode, FromCharacterCode character code conversion
    
Compress, Uncompress convert expressions to and from compressed strings
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