Response.ContentType = “application/vnd.ms-excel”

            ’Additional Test Code for CSV

            ’Response.ContentType = “text/plain”

            If ReturnXYCoords Then

                Response.AppendHeader(“Content-Disposition”, “inline;filename=results.csv”)

                Response.Write(GetCSV(records))

                Response.End()

            End If

http://weblogs.sqlteam.com/travisl/archive/2003/10/27/377.aspx

http://discuss.fogcreek.com/dotnetquestions/default.asp?cmd=show&ixPost=1485

http://www.15seconds.com/issue/970515.htm

Check out how changes to this Response.ContentType can effect the type of results returned to the calling browser.

Response.ContentType = “application/vnd.ms-excel”