It is simple. The first time you save a file, enter the file name and before
clicking on the save button click on the Tools Menu in the Save Dialog box;
then click General Options. The Save Options Dialog Box comes up. You can
check "Always Crete a Backup."
Any idea if this can be made the default position? Unless you consciously
carry out the sequence below (easily omitted), the default position seems to
be NOT to create a backup copy. Seems to me to be a dangerous default.