Not able to use FILTERXML

[AndreaBorruso]

Dear all,
I would like to use FILTERXML, but I have no data.

I use this formula:
=FILTERXML(WEBSERVICE(“http://www.comune.messina.it/repository/pubblicitaappalti/advertisings_exports/ComunediMessina-2014-DatasetLegge190.xml"),"/legge190:pubblicazione/data/lotto/cig/@value”)

And I obtain #VALUE.

What’s wrong in my formula?

Thank you

[mariosv]

Please try with:

=FILTERXML(WEBSERVICE(“http://www.comune.messina.it/repository/pubblicitaappalti/advertisings_exports/ComunediMessina-2014-DatasetLegge190.xml");"//data/lotto/cig”)

There is a bug about retrieve an array of data:
XMLpath in FIlterxml does not work with arrayfunction

Good information with samples in:
w3schools.com