Clayton James on "Horizon theme problem"

hi guys, i have installed "Horizon - Creative One Page Multi-Purpose Retina Theme". I have downloaded the app and unzipped the file. After unzipping the file, i have a Horizon Theme file (.zip). I am trying to upload that on WordPress themes page. But unable to do so. Coming up with an error "are you sure you want to do this?" can someone please help me with this? It's quite urgent. Thank you.

Coming up with an error "are you sure you want to do this?"

It's probably being caused by the .zip file you're trying to upload exceeding the maximum allowed upload size set in your php.ini file.

It's also a common issue when dealing with commercial themes you've purchased and downloaded. Commercial themes are not supported here.

That being said, the documentation that came with your theme probably covers installation issues. The short version is this: install the theme manually by uploading the un-zipped theme folder to your /wp-content/themes directory using your FTP client.

http://www.zorbixthemes.com/article_category/horizon/

See "Getting Started" > Installing the theme