Right-click on part01.rar and select "Extract Here" . The software will automatically pull data from all subsequent parts, including part20, to rebuild the original installer.
Ensure you have every numbered part of the archive in a single directory. If any part is missing or renamed, the extraction will fail. H3DODI.part20.rar
While DODI is a popular source, repacks downloaded from third-party sites can occasionally contain unwanted software. It is recommended to scan the extracted folder with VirusTotal or an updated antivirus. Right-click on part01
Use a tool like WinRAR or 7-Zip to handle .rar files. H3DODI.part20.rar