Special characters

Is there a way I can get excel identify cell which contain special characters.

For example abcd()ef (nedds to be identified)
abcdef doesnt.

Thanks in advance

Rich

define special chatracters!

see attached use the list in col h as your reference, note this is not a complete list of characters some have been left out on purpose (eg char 32 ,space) and some modified (wild cards or they don't look up properly)