How to link contacts with accounts automatically

How to link contacts with accounts automatically

Hello everyone, it is my first time using this CRM i come from SALESFORCES, i want to match the contacts fields with account fields throw .csv files but i don't know how to do it.

I already imported accounts with "ID NAME" unique for each acc.

I have a .csv of my contacts with this ID NAME of the accounts.

Could you help to say zoho how to match the ID NAME with the contacts and the accounts?

Thank you