<s>
textClipping	B-Operating_System
is	O
an	O
extension	O
used	O
by	O
Macintosh	B-Device
computers	I-Device
for	O
strings	O
of	O
text	O
since	O
Mac	B-Operating_System
OS	I-Operating_System
9	I-Operating_System
.	O
</s>
<s>
When	O
a	O
string	O
of	O
text	O
is	O
selected	B-Device
and	O
dragged	O
to	O
the	O
desktop	O
or	O
anywhere	O
on	O
a	O
Macintosh	B-Device
computer	I-Device
,	O
the	O
computer	O
automatically	O
converts	O
it	O
into	O
a	O
.textClipping	O
file	O
.	O
</s>
<s>
Because	O
of	O
its	O
legacy	O
origins	O
,	O
the	O
contents	O
of	O
textClipping	B-Operating_System
files	O
are	O
not	O
stored	O
inside	O
the	O
actual	O
data	O
"	O
fork	O
"	O
of	O
the	O
file	O
,	O
and	O
the	O
files	O
cannot	O
easily	O
be	O
shared	O
between	O
Macs	B-Device
or	O
sent	O
to	O
other	O
machines	O
like	O
an	O
attachment	O
.	O
</s>
<s>
Opening	O
the	O
textClipping	B-Operating_System
file	O
in	O
most	O
applications	O
will	O
show	O
a	O
0	O
byte	O
empty	O
data	O
file	O
.	O
</s>
<s>
When	O
macOS	O
views	O
or	O
performs	O
an	O
action	O
on	O
a	O
textClipping	B-Operating_System
file	O
,	O
it	O
performs	O
a	O
lookup	O
of	O
the	O
file	O
's	O
resource	B-Operating_System
fork	I-Operating_System
where	O
the	O
contents	O
are	O
actually	O
stored	O
.	O
</s>
<s>
Unlike	O
most	O
file	O
extensions	O
,	O
.textClipping	O
separates	O
the	O
words	O
in	O
its	O
name	O
using	O
capitalization	O
(	O
called	O
Camel	O
case	O
)	O
,	O
a	O
practice	O
commonly	O
used	O
in	O
many	O
programming	O
languages	O
.	O
</s>
