Hi Paul

Are you looking to apply Data Validation to cells to ensure that users
can only enter valid Postcodes?
If so, then assuming your data entry will be in column A first set up a
number of Named formulae with
InsertNameDefine
Name First
Refers to =LEFT($A1,FIND(" ",$A1)-1)
Name Last
Refers to =RIGHT($A1,3)
Name start
Refers to =OR(ISTEXT(LEFT(first)),ISTEXT(LEFT(first,2)))
Name mid
Refers to =OR(ISTEXT(MID(first,3,1)),ISTEXT(MID(first,4,1)))
Name end
Refers to =AND(ISNUMBER(--(LEFT(last))),ISTEXT(RIGHT(last,2)))
Name numbers
Refers to
=AND(OR(ISNUMBER(--(MID(first,2,1))),ISNUMBER(--(MID(first,2,2))),
ISNUMBER(--(MID(first,3,1))),ISNUMBER(--(MID(first,3,2)))),
NOT(ISNUMBER(--(RIGHT(first,3)))))

Mark the range of cells in column A where you want the users to enter
Postcode,
DataValidationCustom =AND(start,mid,end,numbers)
Remove tick mark from ignore Blank
Got to Error Alert tab and ensure there is a tick mark in Show error
Alert. Type a message here if you wish.

If not for column A, then change all references from A to the relevant
column letter.



--
Regards

Roger Govier


"Paul G" <Paul wrote in message
...
I would like to get help in creating a function to put into a cell with
the
UK postal code, normally 2 letters then 1 or 2 numbers, space then 1
number
followed by 2 letters eg. WR9 9EP or WR10 3EH