Problem: The Delete Field option is disabled after exporting a feature class that participates in a parcel fabric
In ArcMap, after exporting a feature class that participates in a parcel fabric to a stand-alone feature class using Data > Export Data from the Table of Contents, the Delete Field option in the attribute table is disabled (grayed out) for some fields of the output feature class, as shown in the image below:
Some of the fields in an exported feature class are system maintained fields, and therefore cannot be deleted.
Solution or Workaround
To resolve this issue, use any of the following tools to export a parcel fabric feature class to a stand-alone feature class, rather than exporting from the Table of Contents:
Run the Feature Class to Feature Class tool
In ArcMap, open the Feature Class to Feature Class tool.
For the input features, select the feature class that participates in the parcel fabric.
Specify the output feature class location and name.
Click OK. The feature class is exported as a stand-alone feature class.
Run the Export Fabric To Simple Feature Classes tool