How to open .ATX file extension?

If you cannot open a new file that has been saved in the .ATX format you need to download the appropriate software. The manufacturer of .ATX files is ESRI; .ATX files belong to the GIS Files category. After downloading the application from the list available on our website just run an unknown file, and as the default set the newly installed application supporting the .ATX files. Activities performed in the order described should solve the problems with all the files in the .ATX format.