Thanks for the feedback, Jorge! We continue to explore and invest in ways to make Coda friendlier for a global audience. We recently enabled custom first day of the week (Launched: Choose your own first day of the week), and will continue scoping updates for more international support.
As a heads-up, we do offer custom currency features in tables via the “Currency options” menu:
That said, we recognize there is more work to do to support true internationalization for numbers (decimals v. commas, for example) and currency.