<s>
The	O
Binary	B-Language
Format	I-Language
Description	I-Language
(	O
BFD	O
)	O
language	O
is	O
an	O
extension	O
of	O
XSIL	B-Language
which	O
has	O
added	O
conditionals	O
and	O
the	O
ability	O
to	O
reference	O
files	O
by	O
their	O
stream	O
numbers	O
,	O
rather	O
than	O
by	O
their	O
public	O
URLs	O
.	O
</s>
<s>
A	O
template	B-Application
written	O
in	O
the	O
BFD	O
language	O
can	O
be	O
applied	O
to	O
a	O
binary	O
data	O
file	O
to	O
produce	O
a	O
file	O
with	O
that	O
data	O
formatted	O
with	O
descriptive	O
XML	B-Protocol
tags	O
.	O
</s>
<s>
Such	O
XML-tagged	O
data	O
is	O
then	O
readable	O
by	O
humans	O
and	O
generally	O
by	O
a	O
wider	O
set	O
of	O
computer	O
programs	O
than	O
could	O
read	O
the	O
original	O
data	O
file	O
.	O
</s>
