2.2.12.10 Sort Map
The sort map contains changes to sorting done on the sheet level in a shared workbook (section 2.2.12); each sheet can have a sort map BrtBeginWsSortMap (section 2.4.303) / BrtEndWsSortMap (section 2.4.652). At a maximum, there are only ever two sorts BrtBeginRRSort (section 2.4.195) / BrtEndRRSort (section 2.4.545) per sort map, one specifies sheet level sort changes in rows followed by sheet level sort changes in columns (1). If there are not any changes in sort for rows or columns (1), the sort map does not exist for rows or columns (1) respectively.