If you were to open the file using a text editor like Notepad, you would not find executable code or complex scripts. Instead, you would find simple parameters organized into sections, typically looking something like this (hypothetical example):
Version 1.75 is a historically popular iteration of this software. Because the tool is so lightweight, it relies on external configuration files to remember user settings rather than using a complex database or registry entries. This is where the file comes into play. tinytask-1.75.ini