@Narman and @VolvoGirl - new PC... the setting to expose file extensions was disabled. I was renaming the file, and not the actual extension which Windows10 was hiding from me. Thank you both for your posts... by renaming the archive, I was able to import the prior year's TT file.
To recap for anyone else running into this issue: rename the archive (downloaded from Google Drive which appears to have two files contained therein) to remove the *.zip extension. That should then allow you to import to TT.
