Lokalize is a free and open source localization software for Linux and Windows. Using this software you can translate OpenDocument files (*.odt). It is based on Translate-Toolkit to start translation from .odt to .xliff files and to merge translation back into .odt file. It is released under open source GPL v2+ license .
Install Lokalize on Ubuntu Linux
You can install Lokalize via the terminal application. Open the terminal (ctrl+alt+t) command-line app and run below Lokalize installation command.
sudo apt install lokalize
and install Translate-Toolkit via below command.
sudo apt install translate-toolkit
And start Lokalize app via below command.
You can also open Lokalize via applications menu.
Install Lokalize via Flatpak:
Lokalize is available as a flatpak package from flathub. You need to install flatpak and flathub on your system and restart it. After that open the terminal app (ctrl+alt+t) and run below Lokalize flatpak installation command.
flatpak install flathub org.kde.lokalize
Start Lokalize via below command.
flatpak run org.kde.lokalize
You can uninstall it via
sudo flatpak uninstall org.kde.lokalize