Virginia wants to get a password manager to replace her spreadsheet of passwords. Managers are good if she lets them create the passwords for her. A long, random password is very secure. Leo recommends LastPass. There's also 1Password. Bit Warden.
With LastPass, she can even import her spreadsheet of passwords. Here's how - https://support.logmeininc.com/lastpass/help/how-do-i-import-stored-data-into-lastpass-using-a-generic-csv-file
But remember, she has to remember the master password that unlocks the vault holding the passwords.