Thanks, Nicolay, my imports now work. I didn't know the Date format had to be chosen in MMEX 1.2.4.
Apologies to Loic that I got your name wrong, and also that my attachments failed to get through in my last contribution.
I rely so much on MMEX that any glitches in its use cause panic in my household!
Vista, 7, 8, 8.1. Unicode builds: x86, x64, ia64 versions available.