Save file from in-game disk to real disk

Hey, just recently gotten into computer craft, and knowing a little LUA, i've made a script in-game, but how would I go about saving this to edit properly on my real computer? or is it even possible?

It is saved on your computer, you can edit it with notepad++ or any text editor. Location of the files for ssp will be in %APPDATA%/.minecraft/saves/worldname/computer/computerid

If your running a server it will be in your minecraft server folder/world/computer/computerid