Lookup File Properties

On the File | File Editor tab, in the View group: Select Lookup File Properties to display the properties of the Lookup file attached to the current field.

Alternatively, in the File Editor, right-click on a field that has a lookup table attached and select Lookup Table | Properties..

Note that the properties shown here are read-only and you cannot change them.

You can enable validation for a Lookup table when you compile it using the Compile option on the File tab, in the Lookup Table group. See: Compile Lookup Table

You can also control the default validation behaviour of Lookup tables by making changes in the Options | System | Editor Options form, on the Lookup Table tab. (Click the Project tab to open the backstage menu.).