Install
Copy all the files into your main skyrim folder where you normally put your batch files since this is a batch file as well.

How to use v2(stable)
Unzip the files to your main skyrim folder, the zip contains 4 .txt files.


Step 1 : Bring up your console "~" Use the mainquest1.txt by typing in "bat mainquest1" without the " and you'll gain and unlock all the necessary shouts and complete Act I of the main quest.

Step 2 : Type in "bat mainquest2" and your game will proceed to load a few times, don't worry it's normal. It will load till where you fight Alduin for the first time, at this point you can talk to Paarthurnax and continue Act III of the main quest from there OR you can skip this by following step 3.

Step 3 : Type in "bat mainquest3", wait awhile and you'll see all the dragons surrounding you, when that happens it means you have successfully completed the main quest, at this point you can use the file theend.txt by typing "bat theend" in the console which will skip the whole commotion and you're done with the whole main quest.
Incidentally, if you wait long enough after using mainquest3, Odahviing will talk to you, telling you that he'll be your B***h from now on.
(You can talk to Paarthurnax to meditate on a word of power from here on)


Compatibility 

• -Works best with mods that skips the starting sequence like alternate start or skyrim unbound.
• -Haven't tested on Skyrim Special Edition but I assume it will work with that as well.
• -Only test on Skyrim Legendary Edition