| IsFixed | Specifies whether the value of a field element is fixed. The defined values are: -false: value of field element may be replaced with a new value in future edits. -true: value of field element shall be preserved in future edits. |
| Style | Specifies the data style to format a numeric value. |
| TimeValue | Specifies the time at which a document was last edited. If no value is specified, whether the field is marked as fixed or not, the current time is assumed. |
| Value | Contains last modified time. |