Install libreoffice-kde4 by entering the following commands in the terminal:
sudo apt update sudo apt install libreoffice-kde4
Description:
office productivity suite -- KDE 4 integration
LibreOffice is a full-featured office productivity suite that provides a near drop-in replacement for Microsoft(R) Office. . This package contains the KDE plugin for drawing LibreOffices widgets with KDE/Qt and a KDEish File Picker when running under KDE. You can extend the functionality of this by installing these packages: . * konqueror / kmail
Homepage: http://www.libreoffice.org
Version: 1:6.0.3-0ubuntu1
Section: universe/kde