filter our duplicate import or at least prompt

My case

I have been using MoneyCoach for many years, and as we all know phones will expire after 2-3 or lost

I have previously backed up some money coach files But I haven’t import them

So I reused moneycoach from blanks and one fine day I decided to import the files

All my records are now messed up or missing As I deleted entire accounts as it appeared as a duplicate

Anyway to prompt that it’s a duplicate import or like manual bulk import plus backward compatibility