: v20220728 indicates the game build or update released on July 28, 2022.
Are you having the file, or were you looking for a specific update for the game? World.War.Z.Aftermath.v20220728-SKIDROW.part03.rar
: part03.rar means this is the third volume of a multi-part compressed archive. To extract the game, you would typically need all parts (e.g., part01, part02, etc.) in the same folder. : v20220728 indicates the game build or update