If any kind of pix to aga conversion is even possible, it would be export of GIS data from databases of different platforms, in this case to ArcGIS. You most likely won't find converters designed for such purpose, so using ArcGIS is probably the only option. If you need help with export or import of ArcGIS format, it would be best to consult ESRI support or resources.
Updated: August 9, 2023