| Offset | Name | Size | Contents |
| 4 | sertm | 1 | Error-bar type: 1 = x-direction plus 2 = x-direction minus 3 = y-direction plus 4 = y-direction minus |
| 5 | ebsrc | 1 | Error-bar value source: 1 = percentage 2 = fixed value 3 = standard deviation 4 = custom 5 = standard error |
| 6 | fTeeTop | 1 | TRUE if the error bars are T-shaped (have a line on the top and bottom) |
| 7 | (reserved) | 1 | Reserved; must be 1 |
| 8 | numValue | 8 | IEEE number; specifies the fixed value, percentage, or number of standard deviations for the error bars |
| 16 | cnum | 2 | Number of values or cell references used for custom error bars |