1stseason.7z -

Recent updates allow you to right-click the file and select Extract All... without additional software. 7-Zip (Recommended):

To access the contents of this file, you must use an extraction tool compatible with the 7z format. For Windows Users 1stSeason.7z

A popular free alternative on the App Store that handles more complex or password-protected archives. For Mobile Users Recent updates allow you to right-click the file