Notepad supports UTF-16BE, UTF-16LE and UTF-8 with BOM. That's not good. And no need to fiddle around with xxd and sed or other commands to remove the BOM. If you have any file with a so-called unicode character, a character outside of the regular ascii range. A character > UTF-16's \uFF, as shown by character map as being > \uFF, then use Notepad2 or notepad++