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\
WUgZW5jYW50YSB2ZXJsb3MgcHVlcyB1c3RlZGVzIHNlIHNhbGVuIGRlIGxhcyAgIHNpbXB\
sZXphcyB5IHN1cGVyZmljaWFsaWRhZGVzIGRlIGxvcyBub3RpY2llcm9zIHRyYWRpY2lvb\
mFsZXMuVW4gc2FsdWRvIGRlc2RlIE1vbnRyZWFsLSBDYW5hZGEuCgpBZGVsYW50ZSEgYXP\
DrSBjb21vIHZhbiBlbiBwb2NvIHRpZW1wbyB0ZW5kcsOhbiBtdWNob3MgbWFzIHNlZ3VpZ\
G9yZXMgcXVlICBsYSAiIkdyYW4gcHJlbnNhIENvbG9tYmlhbmEiIiBsYSBjdWFsIGhhIHZ\
lbmlkbyBtaW50aWVuZG8gcG9yIGTDqWNhZGFzLgoKIg=='
On Mathematica:


But if you use another base64 decoder like decoderb64, it can do the job.
String. Base64 is considered an encoding just like gzip (which is also supported). Any file in any format can be encoded like this. – Szabolcs Apr 03 '14 at 14:50