Thanks @Cooleverest

Can confirm, this still works in 2025 - FULL 100% + DLC

Copy all files from download folder
"/saves/00261197979500511/"

Overwrite into your own saves folder (copy these to backup your old save)
"C:\Users\{YOUR_USERNAME}\Documents\Square Enix\Just Cause 3\Saves\{YOUR_STEAMID}"

Make sure games closed when doing and launch to win

This will unlock achievements - This won't get you banned

or the called on one?

anyone managed to make the garage achivment get unlocked?

real

@RaisinLung do you own DLC Sky Fortress Pack? If not, that's why.

it says i need the sky fortress addon, any fix for that?

This works great but i had to switch to another because i didnt have dlcs, but since i knew that it worked thank you!!!!!

Can confirm 25/07/2023 save file still works. Guide needs to be clearer - so make sure to copy all the files within the ID file, then paste them into your own save folder (assuming your are ready) then when you launch you can press continue and aquire Xero's save file. People who are saying nothing pops are kind of correct, only 3 achieves instantly pop. However I found that you have to "initiate" them by doing tasks and maybe repeating missions. For example I missed last 4 missions + DLC ones. I completed another mission through and the rest popped at same time. Similarly I completed 1 gear mission and got 1 star gear, and the rest popped. This save file seems to allow you to finish anything you missed through your first playthrough. Hope this helps anyone in need.

@Batman Saves are 100% in-game and with achievements, but that doesn't mean you get them all by downloading the save file.