Storing X and Y position in a sequence as a .txt file.

I'm trying to make a tool for storing the position of mouse-clicks in a linear sequence, and then store it in a .txt file so I can load them in at a later point with AJAX.

Example:

1280, 720

182, 920

124, 2902

2390, 2392

etc. etc...

I can't find a good way to do this though? The closest thing I can think of is using LocalStorage, but I can't find the save data anywhere on my computer.

Anyone have any suggestions on how to do this?

Thanks

You can use an array and write the file via asJSON and the NWjs object.

Otherwise the local storage files are in \appdata\local\yourgame\localstorage, iirc.