We just recently upgraded to QV11 SR2 and swiched to the AJAX client from the IE pulgin. We're having a problem with the "send to excel" / "export" functionality. When a data set is large enough that it has to be sent as a csv (over the Excel 65K limit) that file is opened as text by Chrome and Firefox rather than being saved as a file. It seems to work fine in IE8 and IE9 using compatibility mode. It looks like the MIME content type being sent back with the file is "text/plain". I would have expected to see "text/CSV" or even the content disposition to be attachment. Is there any way to modifiy these headers to be more explicit or some other work around?