<s>
A	O
NuFX	O
archive	O
is	O
an	O
archive	O
file	O
format	O
that	O
supports	O
lossless	B-Algorithm
data	I-Algorithm
compression	I-Algorithm
.	O
</s>
<s>
He	O
introduced	O
it	O
alongside	O
a	O
pkzip-like	O
program	O
called	O
ShrinkIt	B-General_Concept
for	O
Apple	B-Device
II	I-Device
systems	O
,	O
which	O
he	O
later	O
migrated	O
to	O
the	O
Apple	B-Device
IIGS	I-Device
as	O
GS-Shrinkit	O
.	O
</s>
