Loading Files of an Unknown Type

When the format of a loaded file can not be automatically determined a Select Overlay Type dialog will appear.

This dialog appears when the file extension is missing or not recognized. Specify a type from the drop-down to load the file using that file format scheme.

While any supported format may be selected from this list, some common choices from the list include:

• ASCII Text
• BIL/BIP/BSQ/BIN/GTOPO30/GLOBE/NED/TERRAINBASE
• CSV (Comma-Separated Text)
• DEM (USGS/CDED ASCII Format)
• ESRI (Arc/Info) ASCII Grid
• ESRI (Arc/Info) Binary Grid
• FLOAT/GRID (NED)
• Generic Binary Vector Data
• HDF5

Text Files

If the file can be read by a plain text editor, such as Windows Notepad, and contains X and Y coordinates and attributes, then it can be imported using the Open Generic Text File options.