Making ASCII File to Unicode File in Windows

Problem Statement

How to create a unicode file? Many a time we want to insert unicode i.e. Chinese character in file but if file is ASCII, you can not open it successfully. So insert unicode character into a file, you will be required to have unicode file.

Solution

Insert two character as first two bytes i.e. 0xEE and 0xEF. It mean these two bytes should be at the beginning.