- Things you'll need
-A dump of Mario Kart 8 (or just a modified .msbt file)
-An SD card (in case you're playing on Wii U, if not, if you're playing on Cemu, obviously you don't need one)
-MSBT Editor Reloaded made by IcySon55
-A keyboard to type on (wait..)
- Getting your file
First things first you'll need to find the file you want from the dump you have. They're all located in vol/content/ui/YOUR REGION HERE
The most common file people edit is, well, Common.msbt, so I'll be using this as an example. You now want to drag the file to anywhere you'd like on your pc (or copy and paste it if you want to keep your original file, it's recommended to do so.)
- Editing the file
So, now you're gonna need to extract MSBT Editor Reloaded in the folder you want, it can be named anything. Now open the .exe and click File, and then Open. Now locate your Common.msbt file to wherever you left it on your computer. You can edit the text in the Edit box. Now you're ready to edit whatever you'd like! Once you've done that, simply click File, then Save.
- Applying the mod to the game
Now that you've edited the names, you can get it to work in the game! Simply put the file in vol/content/ui/YOUR REGION HERE, but this time put it on your SD Card/your graphicPacks folder if you're using Cemu.
Now you can play with edited text in your game! See, I told you it was easy ;)