Reading an editable txt file after build

I have an array of points that I create a txt file with when my game ends. I also have a text file that has the location path for the points to be saved to. My idea was that the player can specify where they want the points file to be saved by editing the text in the location file. My issue is that after you build the game you can’t really access these files anymore. Is there a way to have the game read a file that is not packaged into it?