An ADF file is a data format that is used by Esri products such as ArcGIS, ArcInfo Workstation and ArcView.
The ADF file stores data that is used in reference to geographical objects, such as maps.
.adf File
Extension
Developer:
ESRI
File category:
What are adf files & how to open them - ESRI ArcInfo Binary Grid Format
File category:
Developer:
ESRI