Getting handling lines to work on GTA IV Multiplayer

As the title obviously suggests, this a how-to on installing handling lines for use in Multiplayer on GTA IV.

This question is asked over and over again, and the sad part is that there are absolutely NO webpage tutorials on how to do it, and rarely anyone who will help you out.

So here you go:

Step 1: Modify your handling.dat with the line you've created / downloaded.
Step 2: If you do not have any fancy text editing programs, you may need to manually change the copied lines text format to match that of the rest of the document.
Step 3: Open up 'filelist.pak', found in GTA IV/pc/data.
Step 4: Scroll down near the bottom of the page and find the handling section. Find the section where all the same data from the handling.dat is located.
Step 5: Install your line in the same spot you did in the handling.dat (Just copy and paste it).

That's it. Extremely easy, and yet nobody will share it.