@sal,
As has been stated by others, LibreOffice and OpenOffice are almost the same. If you have a specific reason for needing OpenOffice I believe you must remove LibreOffice first because the two will conflict with each other. If that is the case, use Synaptic Package Manager to remove all LibreOffice components, then follow instructions posted by regularfella to get rid of icons and install OpenOffice.
@regularfella,
Nice job looking into that for the OP.