The class list interface is used to import and export class information, and must be provided as a sequential file defined as FB with record length 162.
The following table describes the columns in the class list interface:
| Column | Type | Length | Decimal | Domain | 
|---|---|---|---|---|
| CLATYPE | INTEGER | 4 | 0 | Class number | 
| CLACLS | CHARACTER | 1 | 0 | Charcode | 
| DSCLATYPE | CHARACTER | 30 | 0 | Class description | 
| DRCLATYPE | CHARACTER | 7 | 0 | Class short description | 
| EUROSENS | CHARACTER | 1 | 0 | Hilight flag | 
| FLALFA | CHARACTER | 1 | 0 | Alphanumeric Field | 
| FLZND | CHARACTER | 1 | 0 | Zoned Field | 
| FLPCK | CHARACTER | 1 | 0 | Packed Field | 
| FLBIN | CHARACTER | 1 | 0 | Binary Field | 
| FLEDT | CHARACTER | 1 | 0 | Edited Field | 
| LENMIN | INTEGER | 9 | 0 | Minimum Length | 
| LENMAX | INTEGER | 9 | 0 | Maximum Length | 
| INTMIN | INTEGER | 9 | 0 | Minimum Integer | 
| INTMAX | INTEGER | 9 | 0 | Maximum Integer | 
| DECMIN | INTEGER | 9 | 0 | Minimum Decimal | 
| DECMAX | INTEGER | 9 | 0 | Maximum Decimal | 
| SUPCLASS | CHARACTER | 1 | 0 | Superclass | 
| EDITMSK | CHARACTER | 32 | 0 | Edit Mask | 
| CHGPGM | CHARACTER | 8 | 0 | Masking Program |