Extract zipped file to Steam/steamapps/common/assettocorsa.
Note: consider renaming/backing up before overwriting any files...
example - renaming camera files:
rename to cameras_X.ini and so forth (X represents the camera number).
File contains:
- Track lighting (ext_config - CM/CSP required)
- Replay cameras for all three layouts (various placings, angles and FOV)
- screen background images
- Grass FX
- Rain FX
- Track DL
