Gedcom Export Problems

I have initiated a Gedcom Export of my Family Tree from Geni to a file on my Downloads File. Part of the process was a prompt to download a "Reader" which was suggested by Geni to be "Family Tree Builder" which I agreed to. Having done that I cannot find where the Tree has  gone. I have a My Heritage Family Tree as well. Has the Gedcom export disappeared into my My Heritage Family Tree? I have tried to varify that possibility but it doesnt look like that has occured. So where has my Gedcom Export from My Geni Tree disappeared to. Any help would be appreciated thanks