Simplify the following text for a Grade 12 native English-speaking person.
Original: The Netherlands Antillean guilder is currently the only guilder which is in use , which after the dissolution of the Netherlands Antilles remained the currency of the new countries CuraÃ ao and Sint Maarten and ( until 1 January 2011 ) the Caribbean Netherlands .
Simplified: The Netherlands Antillean guilder is currently the only guilder officially in use , though the Netherlands no longer accepts the currency in their banks . .