YNAB file-based import for Raiffeisen (and other swiss banks)

Hi there YNAB freaks,
Has any of you ever managed to file-base import banks transactions data ?
I am looking a way to import it specifically for Raiffeisen banks.
The CSV export doesn’t have a compatible format to import.
I have been using YNAB for a few years already and I am fed up of manually importing all transactions…
Thanks for any tip you may have!