The file you mentioned is the second segment of a multi-part compressed archive.
: It is also listed on sites like GamersGate . Ebola.2-CODEX.part2.rar
: To use this, you need all parts of the archive in the same folder. You then extract only the first part (part1), and your extraction software (like WinRAR or 7-Zip) will automatically pull data from part 2 and any subsequent parts to reconstruct the full game installer. Where to find it officially The file you mentioned is the second segment
If you're looking for a "proper" and safe way to play the game without dealing with potentially corrupted archive parts, it is available on major digital storefronts: Ebola.2-CODEX.part2.rar
: The full CODEX release is approximately 9.76 GB . The Archive: Part 2