| Offset | Name | Size | Contents |
| 4 | catMin | 2 | minimum category on axis |
| 6 | catMax | 2 | maximum category on axis |
| 8 | catMajor | 2 | value of major unit |
| 10 | duMajor | 2 | units of major unit |
| 12 | catMinor | 2 | value of minor unit |
| 14 | duMinor | 2 | units of minor unit |
| 16 | duBase | 2 | base unit of axis |
| 18 | catCrossDate | 2 | crossing point of value axis (date) |
| 20 | grbit | 2 | Option flags (see following table) |
| Offset | Bits | Mask | Name | Contents |
| 0 | 0 | 01h | fAutoMin | 1 = use default minimum |
| 1 | 02h | fautoMax | 1 = use default maximum | |
| 2 | 04h | fautoMajor | 1 = use default major unit | |
| 3 | 08h | fAutoMinor | 1 = use default minor unit | |
| 4 | 10h | fdateAxis | 1 = this a date axis | |
| 5 | 20h | fAutoBase | 1 = use default base | |
| 6 | 40h | fAutoCross | 1 = use default crossing point | |
| 7 | 80h | fAutoDate | 1 = use default date settings for axis | |
| 1 | 7-0 | FFh | (reserved) | Reserved; must be zero |