Australian Coastal Vertical Datum Transformation (AusCoastVDT) Software  - zip file containing grid file 25 Sept 2019 and msi installer.

This application is no longer supported (Since Sep 2019) for data updates. It does not contain the latest tidal surfaces (including MSL above chart datum) or AUSGEOID 2020. A new version of the tool with updated data is currently being investigated with the assistance of AUSSEABED.