FE FF

UTF-16-UCS-2 file

category: file-signature
normalized: feff
confirmed: 2026-03-15
lookups: 1
source: https://www.garykessler.net/

UTF-16-UCS-2 file. Kessler type: Windows.

Similar magic numbers

value	name	category
FF	Windows executable	file-signature
FF FF FF FF	DOS system driver	file-signature
FE EF	Symantex Ghost image file	file-signature
FD FF FF FF	Thumbs.db subheader	file-signature
F0 FF FF	FAT12 File Allocation Table	file-signature