Move the extracted files into the game folder (often the bin folder where DBXV2.exe is located) and choose to Replace any existing files when prompted.
Depending on the fix, you may need to launch the game directly from the DBXV2.exe in the bin folder rather than through the Steam "Play" button. Important Considerations dbx2-fix-repair-steam-generic-rar
Some repair files are used to disable or bypass Easy Anti-Cheat (EAC) , which is a necessary step for installing mods . Move the extracted files into the game folder