Mac-os-x-el-capitan-10-11-6--15g31---intel---usb-flash-drive-to-install----sadeempc

If you are trying to install this on (not a Mac), that is likely why you found the "SadeemPC" version.

Open the downloaded file and run the .pkg inside to "install" the app into your Applications folder. If you are trying to install this on

This violates Apple's EULA and is inherently insecure when using pre-built images. If you are trying to install this on