the next big OpenOffice release (4.0) is supposed to be quite good. Especially improvement to MS document formats compatibility. Since about summer last year the OpenOffice developers have worked on implement much code of Symphony (IBMs Openoffice-Fork). This will go into the 4.0 version.
Phoronix: Fedora To Look At Reviving Apache OpenOffice
Most Linux distributions have switched over to using LibreOffice in recent years for an office productivity suite on the Linux desktop after disturbances resulting in LibreOffice being forked from OpenOffice.org following Oracle's acquisition of Sun Microsystems.
Calculate Linux has LibreOffice installed by default. I can easily install OpenOffice if I want to. LibreOffice supports VBA better than OpenOffice probably thanks to LGPL. I use a spreadsheet file named Unibox to help simulate speakers in sealed (acoustic suspension), vented (bass reflex), bandpass, and passive radiator/bass radiator types. It still does not work.
Both LibreOffice and OpenOffice are OK for making drafts, but they suck for production use or use in business. Microsoft Office is still the standard even though I do not like the ribbon style GUI. I have WINE setup to run Microsoft Office.