On the assumption you are really attempting to seek help,
I shall respond in the hope that you will (1) start to enjoy
using LO
as well as (2) begin to realize this is a group of
users who voluntarily help others to the best of our ability to so do.
(1) - to whom are you writing when addressing 'owner'?
(2) - to which address did you send the initial request for help?;
it seems to have failed to reach this list before now.
(3) - when one downloads LO, all one need do is to open the program
...
browse through the various menu items at the top ...
set the various properties, et.al. as desired ...
then begin using the program(s).
(4) - Since this is LibreOffice, could you possibly have downloaded
from some fake site -
just what is OfficeLibre and from where did you acquire
this
(5) - Computeractive is what?
(6) - Since installing is merely downloading this program, I'm not
sure to what 'installation wizard' your seeking.
(7) - what kind of 'suitable app' are you seeking?
(8) - what did you buy?; "bought an icon, as confirmed by Microsoft"
???
LO is a free to use program.
Since your signature includes your location as being in the United
Kingdom, I assume you know the English language therefore ...
well, good grammar leads to good communication