create a small autofilter for a column of small integers
show all integers equal to say 2
export as ODF
import into new gnumeric

problems:

warning:
Unexpected element 'draw:text-box' in state : 
	document-content -> body -> spreadsheet -> table -> table-row -> table-cell -> frame


Also all items are shown rather than just the ones matching. Note that it appears that the filter is set correctly just not executed.