<s>
A	O
lossy	B-General_Concept
data	I-General_Concept
conversion	I-General_Concept
method	O
is	O
one	O
where	O
converting	O
data	O
between	O
one	O
storage	O
format	O
and	O
another	O
displays	O
data	O
in	O
a	O
form	O
that	O
is	O
"	O
close	O
enough	O
"	O
to	O
be	O
useful	O
,	O
but	O
may	O
differ	O
in	O
some	O
ways	O
from	O
the	O
original	O
.	O
</s>
<s>
In	O
many	O
cases	O
,	O
a	O
software	O
package	O
such	O
as	O
Microsoft	B-Application
Word	I-Application
will	O
enable	O
a	O
document	O
stored	O
in	O
one	O
format	O
to	O
be	O
saved	O
as	O
another	O
,	O
in	O
particular	O
HTML	B-Language
.	O
</s>
<s>
The	O
document	O
saved	O
in	O
the	O
lossy	B-Algorithm
format	O
may	O
look	O
identical	O
,	O
but	O
the	O
conversion	O
can	O
also	O
cause	O
some	O
loss	O
of	O
fidelity	O
or	O
functionality	O
.	O
</s>
<s>
There	O
are	O
three	O
basic	O
types	O
of	O
lossy	B-General_Concept
data	I-General_Concept
conversion	I-General_Concept
:	O
</s>
<s>
With	O
in-place	O
lossy	B-General_Concept
data	I-General_Concept
conversion	I-General_Concept
,	O
software	O
packages	O
such	O
as	O
IBM	O
's	O
Lotus	B-Operating_System
Domino	I-Operating_System
transform	O
a	O
proprietary	O
rich	O
text	O
format	O
into	O
a	O
web	O
standard	O
HTML	B-Language
as	O
the	O
page	O
is	O
requested	O
.	O
</s>
<s>
With	O
file	O
export	O
lossy	B-General_Concept
data	I-General_Concept
conversion	I-General_Concept
,	O
software	O
packages	O
allow	O
either	O
a	O
File	O
Export	O
to	O
the	O
new	O
data	O
storage	O
format	O
,	O
or	O
a	O
File	O
Save	O
to	O
the	O
new	O
data	O
storage	O
format	O
.	O
</s>
<s>
The	O
former	O
leaves	O
the	O
original	O
content	O
in	O
its	O
original	O
format	O
and	O
creates	O
a	O
new	O
lossy	B-Algorithm
version	O
in	O
the	O
named	O
file	O
.	O
</s>
<s>
With	O
extraction	O
lossy	B-General_Concept
data	I-General_Concept
conversion	I-General_Concept
,	O
software	O
packages	O
take	O
content	O
stored	O
by	O
a	O
different	O
software	O
package	O
and	O
extract	O
out	O
the	O
content	O
to	O
the	O
desired	O
format	O
.	O
</s>
<s>
Such	O
conversions	O
are	O
usually	O
described	O
separately	O
as	O
either	O
lossy	B-Algorithm
data	I-Algorithm
compression	I-Algorithm
or	O
lossless	B-Algorithm
data	I-Algorithm
compression	I-Algorithm
.	O
</s>
