One of your downloads is likely corrupted. You will need to download the specific part again.
(e.g., software, game files, documents?) Are you facing a specific error message? 1677343451.7z.001
A .7z file is a compressed archive created by 7-Zip. When you see files labeled .7z.001 , .7z.002 , .7z.003 , and so on, it means the archive has been or spanned . 1677343451.7z.001 (The first part) 1677343451.7z.002 (The second part) ...and potentially more. One of your downloads is likely corrupted
Select 7-Zip > Extract Here (or "Extract to [folder name]"). and so on