WP All Import couldn't find a file to import inside your ZIP.<br/><br/>Either the .ZIP file is broken, or doesn't contain a file with an extension of  XML, CSV, PSV, DAT, or TXT. <br/>Please attempt to unzip your .ZIP file on your computer to ensure it is a valid .ZIP file which can actually be unzipped, and that it contains a file which WP All Import can import.