"This file needs to be verified."
Translation:Ce dossier est à vérifier.
I guess it's not very common, but it definitely works in French. Basically, "thing + (être) + verb" = "needs to + verb"
Cet exercice est à faire pour demain = This exercise needs/is to be done for tomorrow = You must do this exercise for tomorrow
C'est une règle à respecter = This rule needs to be respected = You must abide by this rule
Hope it helps