Adding and removing text within cells
 

Hi, I have a field named "Postal" at the top of column F that always include
a number with 5 digits then a city name then a region name, such as "11090
CARCASSONNE Linguadoca-Rossiglione". I need to create a program to have this
field changed as following : "F-11090", then copying "CARCASSONNE" into the
City field which is empty (column G). The city name is always starting just
one space character after the postcode, same thing for the region name, it
always starts one space character after the city name. The region has to be
removed completely.
Also, I have a field named Phone (column E), it is always starting with
"+33", and I need to remove the "+33" automatically while keeping the
following numbers in the fields.

Maybe someone could help me ?
Thanks very much
Annie