That value is offset, however, so the range is nominally 13-132, representing dates from January 20x4 through December 20x3.

If you subsequently save, the group will be written without the ignore markings. In short, the label field of a group is not reliable. This mislabeling has no effect on record loading. The ignore flag interferes with what should ordinarily be in the label field (e.g., 'HAIR' becomes 'HQIR'). Format depends on group type (see next field).

Size of the entire group, including the group header (24 bytes). In addition to this, subgroups for WRLD and CELLS provide some useful structural information (e.g., the division of cell data into persistent and non-persistent references). GRUPs are collections of records, and are used to improve scanning of files to make it easier to skip over records that the reading program is not interested in.