Question: how to open nfe file?
Answer: If NEF files don't open in Windows, install the Microsoft Camera Codec Pack which enables the use of NEF, DNG, CR2, CRW, PEF, RW2, and other RAW pictures. NEF files can also be opened with Able RAWer, Adobe Photoshop, IrfanView, GIMP, AfterShot Pro, and probably some other popular photo and graphics tools as well.