"XLS file" style comes from views bonus pack

Hi all!

The README.txt says: "2. Change its style to "XLS file", but "XLS file" style is gived by views_bonus_pack ( if Bonus: Views export module is enabled ), and the outputted file is simple HTML instead of Excel XML ( http://en.wikipedia.org/wiki/Microsoft_Excel#XML_Spreadsheet ).

The right choice is "XLS feed"...