There are many "DODI" impersonator sites that bundle malware with the archives.
Based on the "2GB" label per part and reaching at least "part14," the total uncompressed size of this software is likely over 30 GB . Safety & Reliability
Do not attempt to open this file individually. Once you have all parts, right-click Part 1 and select "Extract Here." If you are unsure of the source, run the extracted .exe through a service like VirusTotal before running the installer.