Based on the LZ77 algorithm, both LZMA and LZMA2 compression techniques provide an excellent data compression ratio. 7-Zip uses these compression methods to create archives in the 7z format protected with AES-256 encryption, though it supports any compression, conversion, and encryption method... (
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The program works with the following extensions:
7z,
gz,
tgz,
zip,
iso,
rar,
z,
taz,
wim,
hfs,
tbz,
cab,
dmg,
arj,
deb,
bz2,
rpm,
lha,
swm,
xar,
tar,
lzh,
tpz,
lzma,
tbz2,
cpio,
gzip,
bzip2,
split,
r83,
r16,
r50,
r66,
r00,
r84,
r17,
r51,
r67,
r01,
r85,
r18,
r52,
r68,
r02,
r30,
r33,
r86,
r19,
r53,
r69,
r03,
r36,
r87,
r20,
r54,
r70,
r04,
r37,
r88,
r21,
r55,
r71,
r05,
r38,
r89,
r22,
r56,
r73,
r06,
r39,
r90,
r23,
r57,
r74,
r07,
r40,
r91,
r24,
r58,
r75,
r08,
r09,
r41,
r92,
r25,
r59,
r76,
r10,
r44,
r93,
r26,
r60,
r77,
r11,
r45,
r94,
r27,
r61,
r78,
r12,
r46,
r95,
r28,
r62,
r79,
r80,
r13,
r47,
r98,
r29,
r63,
r81,
r14,
r48,
r99,
r64,
r82,
r15,
r49,
r65 and
001
