In the last two chapters, I mentioned that the KDE office suite, KOffice, offers similar components that you may want to consider. These include KWord for word processing and KCalc for spreadsheets. There's also an alternative for presentation graphics and that is KPresenter. As before, you can use Synaptic to search for and install KOffice.
Remember that you do not need to be running KDE to run KOffice or any of its components. These applications work very nicely from the GNOME desktop.