Be cautious when downloading files with scrambled names from unknown sources, as they can sometimes contain malware.
If 7-Zip doesn't recognize the file, ensure the filenames are identical except for the numbers (e.g., Archive.7z.001 , Archive.7z.002 ).
Do you have the of this file in the same folder? Does 7z compress better than zip? - Microsoft Community Hub
Download and install the official tool from 7-Zip.org .
Large files are often split into smaller segments (like .001 , .002 , .003 ) to make them easier to upload or store.