I did a dumb mistake of turning my pak files into notepads so i can open and edit them

but now my launcher wont patch or anything
i dont know how to turn them back??
how do i turn the notepad files back into .pak files

repatch?

Go to: control panel, window view, folder options, file types, on the left you will see Extension. Scroll down til it says OGG, find the notepad under OGG and click delete. If you can't, click restore and if another thing pops up under OGG click delete.