Brief guide to file formats		last changed 11 April 1994

 -- The most recent copy of the complete text may be anonymous ftp'd --
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ARC (.arc)
    This format is most popular on PCs.  Compresses and stores multiple
    files in a single archive.
    PC     - arc 6.02, pk361
    Mac    - ArcMac 1.3c
    Unix   - arc 5.21
    VM/CMS - arcutil
    Amiga  - Arc 0.23, PKAX
    VMS    - arcvms
    Apple2 - dearc
    Atari  - arc 5.21b, pkunarc
    OS/2   - arc2

ARJ (.arj)
    ARJ is a new archive format for DOS.  Compresses and stores multiple
    files in a single archive.  The author is Robert K Jung,
    robjung@world.std.com.
    PC     - arj 2.41a (arj241a.exe)
    Unix   - unarj 2.41
    Amiga  - unarj 0.6

BinHex (.hqx)
    A Macintosh format.  Converts a binary Mac file, including data and
    resource forks, into an archive of only printing ASCII characters.
    Note that BinHex4.0 will create and decode the ASCII hqx encoding used
    on Usenet, while BinHex5.0 will decode the ASCII hqx encoding but will
    create a non-ASCII binary file.
    PC     - xbin 2.3
    Mac    - BinHex4.0, BinHex5.0, StuffIt 1.6, Compact Pro 1.32
    Unix   - mcvert
    VM/CMS - binhex

compress (.Z)
    A Unix format.  Compresses a single file in an archive.
    PC     - u16, comprs16, comp430d
    Mac    - MacCompress3.2A
    Unix   - compress
    VM/CMS - compress
    Amiga  - compress
    VMS    - lzcomp
    Apple2 - compress
    Atari  - compress

LHarc (.lzh)
    This format originated on PCs, and is now popular on Amigas.  Compresses
    and stores multiple files in a single archive.
    PC     - lha 2.55b (lha255b.exe & lha255b.txt)
    Mac    - MacLHarc 0.41
    Unix   - lha 1.00
    Amiga  - LHarc 1.30 [Only .lh0 and .lh1], LhA 1.32, LZ 1.92
    Atari  - lharc113

shell archive (.shar, .sh)
    A Unix format.  Stores multiple files in a single archive without
    compression.
    PC     - unshar
    Mac    - UnShar2.0
    Unix   - sh, unshar
    Amiga  - UnShar
    Apple2 - unshar
    Atari  - shar

StuffIt (.sit)
    A Macintosh format.  Compresses and stores multiple files in a
    single archive.
    PC     - mactopc, UnStuffit 1.0
    Mac    - StuffIt 1.6
    Unix   - unsit
    Amiga  - unsit

tape archive (.tar)
    A Unix format.  Stores multiple files in a single archive without
    compression.
    PC     - tar, tarread, pax, pdtar
    Mac    - UnTar2.0
    Unix   - tar, GNU tar
    Amiga  - TarSplit, pax, GNUtar 1.09
    VMS    - vmstar
    Atari  - sttar

ZIP (.zip)
    This format is popular on many systems.  Compresses and stores
    multiple files in a single archive.
    PC     - PKZIP/PKUNZIP 2.04g, Portable unzip 5.1, Portable zip 2.0
    Mac    - UnZip1.02c
    Unix   - Portable unzip 5.1, Portable zip 2.0
    VM/CMS - arcutil 2.0 (uncompress only)
    Amiga  - PKAZip 1.01, Portable unzip 5.1, Portable zip 2.0
    Atari  - STZip 0.9 beta
    VMS    - Portable unzip 5.1, Portable zip 2.0
    OS/2   - PKZIP/PKUNZIP 1.02, Portable unzip 5.1, Portable zip 2.0

ZOO (.zoo)
    This format is popular on USENET.  Compresses and stores multiple
    files in a single archive.
    PC     - zoo 2.10
    Mac    - MacBooz2.1
    Unix   - zoo 2.10
    VM/CMS - zoo
    Amiga  - zoo 2.10
    VMS    - zoo 2.10
    Atari  - zoo 2.10
    OS/2   - zoo 2.10

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Archive programs and/or source are available via anonymous ftp
in the following locations:

ftp site				directories
--------				-----------
oak.oakland.edu (141.210.10.117)	SimTel/msdos/zip/
					SimTel/msdos/archiver/
					pub/unix-c/arc-progs/
					pub/misc/unix/
					pub/macintosh/appl/
garbo.uwasa.fi (128.214.87.1)		pc/arcers/