Quote Originally Posted by martindwilson View Post
you could try opening one in the import wizard and change all column headings to text, excel should remember that next time you open one well its worth a go
I wasn't able to do much work during the weekend so I haven't tried this or installing 2013. I will post an update though once I do.

No, I haven't applied any updates related to Windows or Office. Auto-Updates are turned off.

Thanks.

Steve