Can anybody tell me how to turn UTF 8 into English?

All I wanted to do was download a user's guide for my sewing machine. But it came out in this bizarre language that looks like a blend of Greek, Cuneiform, and Chinese. I have it in Notepad but I have no clue what to do with it. Does anybody anywhere know how I can turn this into something I can read?? Oh, and can you tell I don't know diddly about computers? Thanks.