OK - in my FS9 there is a PictonFl.bgl. I can open it with AFCAD, but it says it is AF2_NZ99.bgl, Picton Float services in the city of Picton, county of Marlborough Sounds, country New Zealand, created 7-5-2007 at 3.49pm, modified 3.49.pm
In my FS10 there is a file of the same name and date, but created 3.49pm and modified 5.49pm. ADE says it does not contain an airport and AFCAD says it is "not in recognised AFD format"
