Alias files are stored on disk as XML files by default. If you want the alias files to be in INI format rather than in XML, set the ALIAS_FILE_IS_XML environment variable to FALSE.
If you want to use this variable, you must set it in the environment when you are executing acurcl -alias (or acurcl with the graphical control panel on Windows), because AcuConnect reads no configuration files in this mode.
See your operating system documentation for how to set environment variables.