Date   : Wed, 10 Apr 1985 06:39:00 MST (Wed)
From   : Keith Petersen <W8SDZ@SIMTEL20.ARPA>
Subject: Need pointer to unpacking lbr's

    I have ftp'd 2 .LBR's and I want to unpack them under UNIX. This would
    allow me use of the high speed printers. Question: How and where is
    the program?
               Thanks!
               Stuart  (sac@mitre-bedford)

Here is a q&a session that answers most questions about LBR files.

Re:   How to find out what .LBR files are

    A question: what exactly are these LBR (library?) files?

See MICRO:<CPM.CPMLIB>LU310.DQC

    Is there some special tool that must be employed to pry them open
    (like "ar" on UNIX for object libraries)?  Is that tool available
    on Simtel-20?

Yes, get MICRO:<CPM.CPMLIB>LU310.COM

    Is there a version of it runs under UNIX?

No, not a completely compatible one.  The closest thing is
MICRO:<UNIX.CPM>LAR.C

    I've been keeping a small public database of messages relating to
    the Simtel library culled from info-cpm.  These messages include
    comprehensive documents from you and a few other people that
    describe how to make access to Simtel-20 and what the various
    file types are, but sadly, I cannot find any description of LBR
    files among them.

A complete description of the official file structure of .LBRs is in
MICRO:<CPM.CPMLIB>LUDEF5.DQC.

--Keith