Interesting, I was just reading about this yesterday. I often remind myself that a computer talks in 1's and 0's. How it translates this is then what you see. For example the byte 0010 0011 is always the same as it flyes around a computer but how its translated end to end can APPEAR different. A browser may show it as one character whereas in ASCII it might show as another.
in reply to ASCII characters not displayed correctly in csv file
Here is an example of what I mean, I found this yesterday http://www.ascii.cl/htmlcodes.htm I found another good one yesterday that actually gave it in bits as well but I can't find that now.