EURO converts one Euro to a given national currency in the European monetary union. @currency is one of the following:
ATS (Austria)
BEF (Belgium)
DEM (Germany)
ESP (Spain)
FIM (Finland)
FRF (France)
IEP (Ireland)
ITL (Italy)
LUF (Luxemburg)
NLG (Netherlands)
PTE (Portugal)
If the given @currency is other than one of the above, EURO returns #NUM! error.