If you have numeric, character, or date-time fields in program-described files, you can specify their external format.
The external format does not affect the way in which a field is processed. However, you may be able to improve performance of arithmetic operations, depending on the internal format specified. For more information, see Performance Considerations.
| Type of Field | Specification | Using |
|---|---|---|
| Input | Input | Position 36 |
| Output | Output | Position 52 |
| Array or Table | Definition | EXTFMT keyword |