On Tue, Sep 20, 2016 at 11:24 AM, Deborah Goldsmith <goldsmit@apple.com> wrote:
There are no tools that ship with macOS or Windows (out of the box) that can decode it.

Neither of those systems come with a compiler out of the box either.  On MacOS, it takes less than 1.5 seconds to install lzip:

$ time brew install lzip
==> Downloading https://homebrew.bintray.com/bottles/lzip-1.18.el_capitan.bottle.tar.gz
Already downloaded: /Users/a/Library/Caches/Homebrew/lzip-1.18.el_capitan.bottle.tar.gz
==> Pouring lzip-1.18.el_capitan.bottle.tar.gz
🍺  /usr/local/Cellar/lzip/1.18: 9 files, 166.4K

real   0m1.124s
user   0m0.646s
sys     0m0.537s

If you have trouble unpacking .tar.lz files - just point your browser to

https://github.com/eggert/tz/tree/2016g

and get whatever individual files you need.