•0 Digit (0 to 9, entry required, plus [+] and minus [–] signs not allowed)
•9 Digit or space (entry not required, plus and minus signs not allowed)
•# Digit or space (entry not required; spaces are displayed as blanks while in Edit mode, but blanks are removed when data is saved; plus and minus signs allowed)
•L Letter (A to Z, entry required)
•? Letter (A to Z, entry optional)
•A Letter or digit (entry required)
•a Letter or digit (entry optional)
•& Any character or a space (entry required)
•C Any character or a space (entry optional)
•. , : ; - / Decimal placeholder and thousand, date and time separator
•Separator: A character that separates units of text or numbers. The actual character used depends on the settings in the Regional Settings Properties dialog box in Windows Control Panel.
•&< Causes all character to be converted to lowercase
•&> Causes all character to be converted to uppercase
Other characters display as literal characters.
NOTE: The characters indicated above can not be used as literals.