gvim: Open file with format Unicode text, UTF-16, little-endian

[Copper Hill]

set the below two options before opening the file
set encoding=utf-8
set fileencoding=utf-16le

note: before opening the file.

[Hong Zhaogang]

* convert Unicode text, UTF-16, little-endian to cp936

1. get rid of the bom bytes
dd ibs=2 skip=1 if=NewWordu.txt of=b1.txt

2. iconv.exe -f utf-16le -t cp936 b1.txt >NewWord.txt