I'm handling some paragraphs encoded with Base64 from CSV file format. The problem is that Mathematica can't decode it. I'm thinking to write my decode method by my own, but I ask it first.

By example:

I used base64.b64encode on python with the string:

s = '"Hola los felicito por su equipo de comunicadores. Me encanta verlos pues ustedes se salen de las   simplezas y superficialidades de los noticieros tradicionales.Un saludo desde Montreal- Canada.

Adelante! así como van en poco tiempo tendrán muchos mas seguidores que  la ""Gran prensa Colombiana"" la cual ha venido mintiendo por décadas.


And outcome:

 b = 'IkhvbGEgbG9zIGZlbGljaXRvIHBvciBzdSBlcXVpcG8gZGUgY29tdW5pY2Fkb3Jlcy4gT\

On Mathematica:

enter image description here

enter image description here

But if you use another base64 decoder like decoderb64, it can do the job.


1 Answer 1


That's because "Base64" is not a format but an encoding and you still need to tell Mathematica what format to import after decoding from Base64. This is described in the documentation.

Try this:

ImportString[s, {"Base64", "String"}]
  • $\begingroup$ Oh, Thanks, I don't figure out. I thought that "String" was implicit. $\endgroup$ Apr 3, 2014 at 14:45
  • 2
    $\begingroup$ @d555 It could be anything, not just String. Base64 is considered an encoding just like gzip (which is also supported). Any file in any format can be encoded like this. $\endgroup$
    – Szabolcs
    Apr 3, 2014 at 14:50

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