A workbook that has been marked as final: (a) Displays a nonstop, flashing Message Bar that the…

A workbook that has been notable as conclusive:

 (a) Displays a nonstop, gleaming Message Bar that the workbook is conclusive.

 (b) Is password guarded to produce any changes.

 (c) Opens in Read-Only rule.

 (d) Must embrace a digital attestation.