Config.ini

The Configuration file.

When you save your settings, whether they be the config or the sensitivities of the LS writer, it is saved to a file with a .ini extension. The default file is called config.ini.

Here is how I suggest naming your config files. When you save changes, name your file
config[date]A. If you save again on the same day, use B. [date] is the date you save your config. This way, if you make a change that does not work out well for you, you can go back to a previous save. Periodically, you can delete out the old saved config files.