Cross-saving is a convenient feature that allows players to continue their game progress across different platforms. If you're looking to modify your save file on PC and transfer it back to your Xbox for a new game plus-style experience, there are several solutions you can try.
The first solution is to use a modding tool to edit the save file on your PC. There are various modding tools available online that can edit game files, including save files. To use this solution, you'll need a PC that can run the game and the modding tool, as well as a copy of the game on PC. Once you've edited the save file, you can transfer it back to your Xbox.
Another solution is to use a save file transfer tool. These tools allow you to transfer your save files between different platforms, including Xbox and PC. To use this solution, you'll need a save file on your Xbox that you want to modify, as well as a save file on your PC that you want to transfer the modified data back to. You'll also need a save file transfer tool that is compatible with the game you're playing.
A third solution is to use a cloud-saving service. Cloud-saving services allow you to save your game progress online, which can be accessed from any device that has an internet connection. To use this solution, you'll need a cloud-saving service that is compatible with the game you're playing, as well as an internet connection that is fast enough to support online gaming.
It's important to note that all of these solutions have their own risks and limitations, and you should do your own research and testing before attempting any of them. Additionally, modifying save files can potentially cause issues with the game, so it's important to backup your save files before attempting any modifications.
In conclusion, there are several solutions available to modify a save file on PC and transfer it back to your Xbox for a new game plus-style experience. Whether you choose to use a modding tool, a save file transfer tool, or a cloud-saving service, be sure to do your own research and testing before attempting any modifications, and always backup your save files to avoid any potential issues.