This is a template attribute. Template attributes can be used in filtering, or to retrieve data from the model to use in drawings and reports. For example, when you create a report, Tekla Structures replaces the attributes added in the report template with the corresponding object property values.

This attribute shows the creation date of the drawing. If the advanced option XS_IMPERIAL_DATE is set, the format of the date is mm/dd/yyyy. Otherwise the format is dd.mm.yyyy.

In drawing templates, this attribute shows the last revision date. In REVISION lists it also shows the revision history.