: Some .7z archives are "split." If you see files like .7z.001 , you must have all parts in the same folder before extracting. Frequently Asked Questions (FAQ) - 7-Zip
: Some mods require a mod manager like Vortex to properly overwrite original game sounds. For Music Production : casinosounds.7z
To use the contents, you must first "unzip" or extract them from the archive. : Some