aws RDS s3 import command

I have a situation where the DB has a primary key field say "id" with an autoincrement or UUID auto generations field. I am using AWS RDS Postgres database. Options 1 (Preferred) - The CSV I want to import does not have the ID column and needs to ensure that the alignment of the columns can skip over the ID field. They are saying it does not match up and is not importing to the correct columns, Option 2 - The CSV has an existing ID field but they do not want to include that in the import so is there a way to exclude that column from importing? Overall I am looking forward to knowing if it is possible to tell which columns to use in the CSV to import or map to the table columns and if you can exclude columns or skip them.