Database "Service2007" has one form and one table with one field !!
I created on my PC with A2010.
I then emailed it to PC with A2007.
PC with A2007 does "not recognise format".
Also, on A2007 PC , I created a new blank database and tried to import from "Service2007" but still unrecognised.
I accept that there are differences between A2007 and A2010 but I have used the simplest of all functionality that would have worked 15 years ago!
What am I doing wrong?