Cz Party.7z -

: If you get a "Can not open file as archive" error, the download likely failed or was cut short. Try downloading it again.

Select 7-Zip > Extract to "Cz party\" . This creates a folder so files don't clutter your current directory. : Cz party.7z

If it is a Ren'Py game (common for this file naming style), you may see a .sh file for Linux or a .app for Mac. : If you get a "Can not open