FAQ Filetypes - Adobe v Foxit

[QuackersNI]

Love Foxit Reader ; fed up with Adobe Reader . Just wondering which if any of these filetypes, currently associated with Adobe Reader, will open with Foxit Reader:
fdf / pdfxml / pdx / xdp / xfdf
Want to be able to encourage people to use Foxit instead of Adobe, but they'll want to be sure it will be able to replace it fully.
Thanks