what program to use to open .psf file??

Factual Questions
#1

well…the title says it all.

#2
      • Google it: enter “.psf file”.
        ~
#3

Try this site out… http://www.arcsoft.com/products/software/en/photostudio.html

#4

And for all your file extension needs… this site is very helpful…
http://filext.com/