This will probably turn out to be one of those things that everybody except me already knew, so I know I am setting myself up for a fall here.
I only noticed today when I was trying to enter a really long number. Excel records the first fifteen digits and replaces everything after than with zeroes. For sure, it was my Tesco Clubcard number, so I could save it as text, but that's not the point. It's an up to date version of Excel, by the way.
Ho hum.
