To open this, you cannot just use part 1 alone. You need (part1, part2, etc.) in the same folder.
: Right-click on part1.rar and select "Extract Here."
: The software will automatically pull data from the subsequent parts to reconstruct the full game installer or ISO. 2. Common Sources & Passwords
: All parts (except the very last one) should be the exact same size.
: Ensure every numbered segment is in the same directory.