Wolfram Language & System 10.0 (2014)|Legacy Documentation

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  • Using as the format specification, Import and Export can represent any file as a sequence of ordinary or special characters.


    Arbitrary binary data represented as a Wolfram Language string.
    Used for importing or exporting entire raw binary data.

Import and ExportImport and Export

  • Import["file","String"] imports a file as a raw string, representing each byte of the file as the character corresponding to FromCharacterCode[byte].
  • Export["file",str,"String"] exports a Wolfram Language string of characters to a binary file. Characters with an encoding greater than 255 are converted to their ASCII representation before exporting.
  • The format must be explicitly specified.
  • ExportString[expr,"format"] and Import[Export["tmp",expr,"format"],"String"] return the same expression.
  • Import["file","String"] reads any binary file, representing its raw content as a Wolfram Language string object.
  • Export["file",str,"String"] exports a Wolfram Language string to a file.
  • No character encoding transformations are performed when importing or exporting as .
  • Export["file",expr,"String"] exports a textual representation of expr.
  • See the reference pages for full general information on Import and Export.
  • ImportString and ExportString support the format.

ExamplesExamplesopen allclose all

Basic Examples  (1)Basic Examples  (1)

Read an arbitrary binary file and return it as a raw Wolfram Language string:

Click for copyable input

Show the first bytes of the result, which contain unprintable characters:

Click for copyable input

Convert the string which represents the file "ocelot.jpg" to graphics:

Click for copyable input
Introduced in 2004
| Updated in 2007