My friend used WOrd 2003 on the same PC to write his essay. He saved it last night, now hes opened it up again and it's come up with a loada crap that looks like this:

⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪ ⨪⨪⨪⨪⨪⨪⨪⨪⨪⨪䒈〱(᭘���԰ꏄۄ��ᛜᛞ��耏ᛜᛜ��ŊŊᛜᛜ耏ᛝᛝ��ᛝᛝ䒈〱(ᮃ�� �԰ꏄۄ��ᛝᛞ��耏ᛝᛝ��ᛝᛝ耏ᛝᛝ�

What happened?

All I can tell is that it may have something to do with language settings or charachter encoding. I have no clue how to fix it though =/