New to Joomla-- can't install template on site

Got to be the most inane ? of all, but I can’t install a downloaded template file (Optimas, and also Brenda-Construction) from ThemeForest site) to my Joomla 3.9x site. Installer requires a Package file (.zip) but of course the files didn’t have one.

In desperation I tried to zip file the entire folder contents, and separately just the Assets folder and neither one worked. Error: no XML file found…

Tried also from Folder location. Same failure.

I’m in hour #6 on this and gotta get some help. Thanks to whoever can!

Hi

Please check:

Please check your purchased item documentation hope you will get proper help there. If you have still problem with the theme then The best way to get the support is Contact your purchased Theme Author. Contact Author and let them know.

Thanks

After download completed, you need to unzip the package. Then find to the folder containing the theme/template to install.

The original package that you downloaded will contain many things: document, Licensing, Sample Data, … So it cannot be installed.