Notes about the AU3 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 AU3 file type is primarily associated with 'AutoIt' by HiddenSoft. AutoIt is an open source BASIC-like scripting language designed for automating the Windows GUI. The scripts can be compiled for standalone execution.