Ensure Part 4 is the same size as Parts 1 through 3.
Use the latest version of WinRAR or 7-Zip to avoid header errors. Are you having trouble extracting the files , or Tell.Me.Why-CODEX.part4.rar
If you are specifically getting an error with "Part 4," here is a quick checklist: Ensure Part 4 is the same size as Parts 1 through 3
It is often included in the Xbox Game Pass library for PC and Console. Tell.Me.Why-CODEX.part4.rar