Storage Help

Right now I have a HighScore variable written when a new high score occurs and then read onto a variable that puts it onto a text object using events. It works, meaning that when I preview the game it keeps the high score of 5 whenever I exit and enter the preview. But I want to set it back to 0, so where can I access the file I saved the value of the high score to so I can edit it back to 0?

The fast way is to set a quick key to reset the score and include that event in the scene.

If key R is pressed || { code here to set all high scores to zero }