http://bugs.winehq.org/show_bug.cgi?id=25494
--- Comment #7 from Rosanne DiMesio dimesio@earthlink.net 2011-07-31 21:40:02 CDT --- Created an attachment (id=35766) --> (http://bugs.winehq.org/attachment.cgi?id=35766) xlsx file saved by Excel 2010 running in Windows Vista
Saved it in Windows.