how to get rid of garbage characters when opening a txt file with excel and the txt file has east Asian characters

Sometimes when we open a txt file with excel  and the txt file has east Asian characters, we will see some garbage characters. How to get rid of them.

To open a txt file with excel. First open an empty excel, then click File=>Open=> Go the the file you want to open => click open.

Some ones say  if we open it with  option Windows(ANSI) we will get rid of garbage characters. But I tried my file with Windows(ANSI), did not get rid of garbage characters.

So I tried some other options, I tried Unicode (UTF-8) and got rid of garbage characters.