WordPress isnt’ an executable file ot install on your PC. It’s a collection of script files that run on a public-facing web server.
For a lot more good information, and installation instructions, see this page:
https://codex.wordpress.org/FAQ_Installation
Short answer is you need a web server / hosting package to install WordPress. Once you have that, you’d upload the files you’re seeing in WinRAR and then point your browser to your website’s URL. The installation wizard would then appear.
Long answer is you can download a program called XAMPP if you want to install WordPress locally on your computer. A tutorial for doing this is here: https://premium.wpmudev.org/blog/how-to-install-wordpress-locally-for-pcwindows-with-xampp/
Peter
(@kaffeevollautomattest24)
If you are new to wordpress, I recommend to install it locally first!
You can hide your site, but experiment on productive server, where everybody could see it is not the best way.
Use this video to install it locally https://www.youtube.com/watch?v=MHMV6tUuadA
