Notes about the WAG file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The WAG file type is primarily associated with 'Train Simulator' by Microsoft Corporation. A realistic experience of rail equipment brought to the PC - placing you in the cab of each detailed locomotive, with accurate, fully-functional gauges and working controls that you manipulate. Whether it's working the regulator on a steam engine or the air brake system on a modern diesel, you are in control.