Hi Antonia, just today we were discussing about the naming of that feature since it will only update the values that are already present but, but it won't import new records. If you want to import records into a blank database, you need to import the XML exports.
This other discussion may shed more light.
[http://www.openforis.org/support/questions/80/changing-plot-attributes-in-the-collect-earth-database][1]
Thanks,
Giulio
[1]: http://www.openforis.org/support/questions/80/changing-plot-attributes-in-the-collect-earth-database