What files can QAZ v3.21a recognize?
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 QAZ will recognize and list the following archive and-or compressed 
 file formats (listed by common file extentions):

  Extention    Name/Type of Archiver                 Version(s)
  ---------    ---------------------                 ----------
   .AMG         AMG                                    2.2    
                AR  (LHArc anscestor)                 
                AR7 (E-mailable form of AR)            1.2
   .ARC         ARC (includes PKARC and PKPAK)         7.?
   .ARJ         ARJ                                    2.41a 
   .CD          MDCD (Alternate extention for .MD)     1.0
   .CPT         Compact-Pro (Mac)
   .CPZ         Central-Point Shrink                   1992
              * Diet (non-executable)                  1.45f
                Disk Doubler (Mac)
   .DMS       * DMS (Amiga format)
   .DWC         DWC                                    A5.01
   .F         * Unix Freeze v2 (also with .XF ext?)    2.5.0
   .GZ          Gnu-Zip                                1.2.4 
   .HA          HA                                     0.98
   .HAP         Hamarsoft HAP                          3.00
   .HPK         HPACK (Level 1)                        0.79a0
   .HQX         BinHex (Mac)                           4.0
   .HQX.CPT     Compact-Pro (BinHex'd)
   .HQX.SEA     Self-Extracting Archive (See .SEA)
   .HQX.SIT     Stuff-It!
   .HYP         Hyper                                  2.6  
   .ICE         LHice (alternate form of LHArc 1.14)
   .ICE         ReeveSoft Freeze (for Windows)         1.0
   .ICE         (Used for some .LZH or .ZIP files)
                JRchive                                1.0
   .LBR         Novosielski Library (as in LU/LAR)     LU86
   .LHA         LHArc (Amiga, most versions)
   .LIB         Codec (extention may vary)             3.10
   .LIF         Knowledge Dynamics
              * KBoom                                  1.1
   .LIM         Limit                                  1.0
   .LZH         LHArc
   .LZS         LArc (LHArc anscestor)
   .MD          MDCD                                   1.0
   .PAK         PAK (ARC relative)                     2.51
   .PAK         (Also used for some .ZIP or .LZH files)
   .PGP       * Pretty-Good Privacy                    2.0
   .PIT       * PackIt (Mac)                           I..III
   .PP        * PowerPacker  
   .PUT         PUT (LHArc relative)               
   .QEZ         Queasy                                 1.2
   .RAR         RAR                                    1.40.2-Beta
   .SAR         SAR (LHArc relative)                   1.00
   .SDN         Shareware Distribution Network (either PAK or ARJ).
   .SEA         Self-Extracting Archive (Mac .SIT, .CPT, DiskDoubler)
              * Slim
   .SHK         ShrinkIt (aka NuFX, an Apple IIgs format)
   .SIT         Stuff-It!  (Mac)
   .SPL         Splint                                 2.1
   .SQZ         Squeeze-It!                            1.08.3e
   .TAR         Unix TAR
   .UC2       * UltraCompressor II
   .Y         * Yabba
   .Z         * Unix Compress (w/header) or Gnu-Zip    4.3 (?)
   .ZIP         Zip                                    2.04g
   .ZOO         Zoo                                    2.10
   .ZPK         Zi-Lite (aka ZPACK)                    2.20
   .?Q?         Squeeze (SQ, SQPC)
   .??_       * Microsoft Compress                     1.00 (?)

              * QAZ can recognize but cannot list some of these formats 
                because the files are compressed, encoded or encrypted, 
                (often of single files).

   Version-numbers given are for where later versions may (or may not) be
   incompatible with this version of QAZ.
   
   Self-extracting DOS archives (EXE and COM) are also recognized using
   generic SFX-detection as well as tables of known self-extractors.
   Not all self-extractors will be recognized, however.

   File types with vague header information such as HUF, GAS or RLE8/16
   are not recognized by this version of QAZ.