I created a .xlsm file under Excel 2007. I have now upgraded to Excel 2016. The file opens by default (from explorer) in Excel 2007. I an open it from within Excel 2016, make changes to it and then save it, but if I open it through Explorer, it still opens under Excel 2007. How do I get it to open in Excel 2016 by default?
Added info (11/02/2016 01:02 AM):
1. I have responded to the two suggestions received so far Please see below.
2. I think I have identified the problem. A search of the registry shows that in HKEY_CLASSES_ROOT (when referenced by name) Excel Templates are routed to Excel 16, but spreadsheets and macro enabled spreadsheets files are routed to Excel 12. In looking at the file types, most of them appear routed to Excel 12. There are several references to older versions of Excel that are not on this machine (and never have been). This is far too much to fix by hand. Does anyone know of a tool that will straighten things out?
Would I do my self any harm by uninstalling Office 2007? Would this help fix the associations in the registry?