I just got a change recommendation report for one add-in I submitted. It says Your add-in is not working in the Excel 2013 client on Windows 7 with Internet Explorer 11.>
Your add-in is not working in the Excel 2013 client on Windows 7 with Internet Explorer 11.>
Excel 2013 supports some things, but there's lots that it doesn't support, including anything using Excel.run().
http://dev.office.com/reference/add-ins/office-add-in-requirement-sets