FIELD.DDF | BTR5 |   80
ID                | UBIN_INT |    1|   2
FILE_NUM          | UBIN_INT |    3|   2
FIELD_NAME        | TEXT     |    5|  20
FIELD_NAME_C[20]  | TEXT     |    5|   1
F_NAME_N[20]      | UBIN_INT |    5|   1
XTR_FIELD_TYPE    | UBIN_INT |   25|   1
OFFSET            | UBIN_INT |   26|   2
FIELD_SIZE        | UBIN_INT |   28|   2
DEC_POS           | UBIN_INT |   30|   1
RESERVED_FLAGS    | UBIN_INT |   31|   2
