Left.4.dead.2.v2.2.3.1.zip ...: File-

Left 4 Dead 2 v2.2.3.1 – Standalone Update / Patch Archive

This archive contains the files for Left 4 Dead 2 version 2.2.3.1 . This version corresponds to the "The Last Stand" community update (released September 2020). Please verify your game's current version before applying. File- Left.4.Dead.2.v2.2.3.1.zip ...

It looks like you're referencing a filename: File- Left.4.Dead.2.v2.2.3.1.zip . Left 4 Dead 2 v2