I have a staff ID list with maybe 4 or 5 or 6 digit, I want to convert this number to a 9 digit account number, starting with "E".
If staff ID is 4 digit, account number is E + 0000+ staff ID
If staff ID is 5 digit, account number is E + 000+ staff ID
If staff ID is 6 digit, account number is E + 00+ staff ID
Which tool and formular is better to get this?