Excel - What is the "Repeat and inline value" supposed to create - this should be explained better.  Also the output is not a very useful excel table.  See attached repeat.xsl.

It is just to show that you can use ui:repeat inside a cell. Some users wanted it. Purely looking at the output surely seems a bit weird, but looking at the code producing it, clarifies a lot:
            <e:cell>
                <ui:repeat value="#{list}" var="person">
                    #{person.name}, 
                </ui:repeat>
            </e:cell>

/ Daniel