I've just written on another SE site:
My problem is that I can't ignore a file whose name I don't know
and I keep wondering whether there's another word for whose in this case. Somehow it sounds overcomplicated to me (I'm not a native in English anyway)
Some other questions such as Can we use WHOSE for things? (or should I use 'that' or 'which'?) explains that I can use this word but, Could I use another word as an alternative?