Before you import point data from an ASCII (text) file that contains user-defined columns you must create a User-Defined Property Classification.
 right-click User-Defined Property Classification
 right-click User-Defined Property Classification New. For more information, see To Create a User-Defined Property Classification.
New. For more information, see To Create a User-Defined Property Classification.  New.
 New.  Create
Create Import Points. Select the ASCII file you wish to import and select the Point File Format you defined in step five.
Import Points. Select the ASCII file you wish to import and select the Point File Format you defined in step five.