You must have ...001 , ...002 , etc., in the same folder .
One of your downloads is likely corrupted. You will need to download the specific part again. 1677343451.7z.001
Split archives can sometimes be used to bypass simple antivirus scans. Always ensure your antivirus software is active before opening the files. To give you a more specific article, could you tell me: You must have
(Windows, macOS, Linux?)