Currently we don’t have a bulk export function besides the one from the bulk actions menu. We do have an extension that uploads all invoices to dropbox automatically, but for the past orders you’d still have to export them manually (also available in bulk for dropbox, it creates individual files).
Yes you can add another address to the recipients of the admin email via the settings: WooCommerce > Settings > Email > New Order > Recipients.
However, I recommend not using this email to attach the invoice because it means that all orders get an invoice, regardless of whether they end up being cancelled or failed. See: Invoice numbers explained.
You can get a BCC copy of the email sent to the customer with a small code snippet: https://docs.wpovernight.com/woocommerce-pdf-invoices-packing-slips/receive-a-copy-of-each-invoice-sent-by-email/
Hope that helps!
Ewout
