If you have any synchronisation software running on the machine (eg OneDrive or Google Drive, Dropbox etc), or have a network drive, be aware that the Windows Explorer shortcut to the “Documents“ folder may have been hijacked by this software and what you think has been unzipped to the Documents folder is actually in the synchronised folder instead.

You need to unpack settings and files into the Documents folder that is in the root of the appropriate User folder and run it from there.

Failure to do so is likely to lead to "File not found" type errors when you attempt to start processing files.