You must download (Part 1, Part 2, etc.) before you can extract the game. Keep all parts in the same folder.
If the file part stays stuck on "prepare piece" for a long time, that specific server mirror may be down. Go back to the FitGirl-Repacks.site entry for Victoria 3 and try a different download mirror (e.g., Doodrive, JDownloader/Multiup, or Torrents). Victoria 3 -- fitgirl-repacks.site --.part2.rar
Some ad-blockers or browser extensions interfere with the scripts required to "prepare" the file for download. Try opening the link in Incognito/Private mode or a different browser like Firefox or Edge. You must download (Part 1, Part 2, etc
Tools like JDownloader 2 are much better at handling multi-part .rar files. You can copy the URL into JDownloader, and it will automatically retry the "prepare" phase until the file is captured. Important Note on Multi-Part Files Since you are downloading .part2.rar , remember: Go back to the FitGirl-Repacks
If you are seeing this while trying to download from FitGirl Repacks, try these steps to resolve the hang: