While the desire to skip grinding or test game limits is understandable, the security risks (malware, data loss) and gameplay consequences (broken quests, boredom) far outweigh any temporary benefit.
Copy the SaveSlot_0.dat (or whatever slot you are using) to your desktop. Rename it SaveSlot_0_BACKUP.dat . If you mess up, you can restore this file.
Before you can edit anything, you need to find where the game stores your progress. For the Steam version on Windows, the path is usually:
No manual file editing. Cons: Requires a subscription for some features, and it must run in the background.