AVX - ArcView Extension File
This is an add-on file used by the ArcView program which is used for GIS visualization and data analysis. It contains program code to expand the functionality of ArcView and can be used to add multiple extensions such as graphing functions, data import and export functions and statistical analysis. These files are stored in plain text formats. NOTE: The ArcView program is included as part of the ESRI ArcGIS Desktop GIS software package.