Greetings
I appreciate your help. I didn't find that solution anywhere on the internet.
I have been inserting the emails manually for over two years.
None of the specialists nor the tool owners themselves bothered to alert on this.
I want to add another thing that the order is also essential: first name, last name, then email. Import is not accepted if the email is at the beginning.
Jozef, thank you again, have a nice day.