For those who might know what the output of the 7z command-line tool means, the 
first thing reported by 7z for that IBM archive is this:

7-Zip [64] 9.20  Copyright (c) 1999-2010 Igor Pavlov  2010-11-18

Listing archive:

Path =
Type = 7z
Method = LZMA BCJ
Solid = +
Blocks = 2
Physical Size = 1118615712
Headers Size = 10765

Note the type says it is "7z", not "zip".  I used the same command on a file I 
know for a fact is in zip format:

7-Zip [64] 9.20  Copyright (c) 1999-2010 Igor Pavlov  2010-11-18

Listing archive: XXXXXXXX.ZIP

Type = zip
Physical Size = 130303


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Gord Tomlin
Sent: Monday, September 19, 2016 4:03 PM
Subject: Re: k4t4949b (September 2016 refresh of the z/OS 2.2 manuals)

You can use 7-Zip to show the archive type, for example:

7z l -slt F:\winzip\

You might want to redirect the command output, since you are dealing with a 
large archive, and the command output will likely be large.


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