In Lyx 2.2.0, Documents tab, there is the option to view Open Document
(elyxer).
An error? Selecting this certainly does a conversion, the heading says
.....odt,
but the converted file does not look like open doc format, and if the
file is saved,
it saves as an html, which is what I would expect from an elyxer conversion.
Using pandoc for a conversion to open doc. does partially work, it
manages simple
text, but can not convert some of the formatting and punctuation.
Flatly refused
to convert a Lyx technical manual containing tables and diagrams.