 If the encoding of the document supports direct representation of the characters, they can be used, but doing so can cause difficulties if the document needs to be edited by someone who is using an editor that cannot support the encoding.For example, many simple text editors only handle a few encodings or assume that the encoding of any file opened is a platform default, so the quote characters may appear as the generic replacement character or 'mojibake' (gibberish).HTML includes a set of entities for curved quotes