.AVX File Extension

Add-on file used by ArcView, a program used for GIS data analysis and visualization; contains program code that is used to add new functionality to ArcView; may be used to add various extensions, including graphing functions, statistical analysis, and data import and export capabilities.

AVX files are stored in a plain text format.

NOTE: ArcView is included with ESRI's ArcGIS Desktop GIS software.

Software extension used by Avid products such as Media Composer and Xpress; adds functionality to the software such as custom video effects or new file format importing; enables third-party developers to extend the base application features.