JInstaller: :Install: Can't find XML setup file // Unable to find install package

I just purchased Joomla Mega Menu and when I tried to install it (version 3. 2. Extensions > Manage > Install > Upload Package File, I get the following error message.

Warning
JInstaller: :Install: Can't find XML setup file.

Error
Unable to find install package

I have seen others on the forum from a few months back with the same problem, but no one answered their request for help, so that is a concern.

Here is my Joomla info:
PHP Built On Linux ecbiz226.
Database Version 5.6.34-log
PHP Version 5.4.45
Web Server Apache
WebServer to PHP Interface cgi-fcgi
Joomla! Version Joomla! 3.6.5 Stable [ Noether ] 1-December-2016 22:46 GMT
Joomla! Platform Version Joomla Platform 13.1.0 Stable [ Curiosity ] 24-Apr-2013 00:00 GMT
User Agent Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36

OK, so after some research and trying different things, I figured out how to install the Mega Menu into Joomla 3.

You have to first unzip the downloaded zipped file.

Then, inside of that folder, you will have a documentation folder, a Licensing folder, and a Package Install folder. Inside the Package Install folder you will find the zip file that you use to install the menu into Joomla using: Extensions > Manage > Install > Upload Package File > then navigate to this zip file and install.

Thank You Very Much!!!
You Help me A lot