On 2019-11-04, R.Wieser wrote:
>I'm afraid that I currently have very little-to-no knowledge as to how I
>should do such a track-back (to the package).   :-\    (Linux newbie with a
>DOS/Windows programming background).

I don't know how the GUI tools do it. At the command line:

$ dpkg -S $(which file)
file: /usr/bin/file
$ dpkg -S xdg-mime
xdg-utils: /usr/share/man/man1/xdg-mime.1.gz
bash-completion: /usr/share/bash-completion/completions/xdg-mime
xdg-utils: /usr/bin/xdg-mime
$ apt show file

(etc.)

If you don't have apt, try aptitude show file etc.

--- SoupGate-Win32 v1.05