How do I download an app from a site that is not identified by Apple?
I have a brand new iMac, and was trying to download an application, but received a message that the app couldn't be opened because it was unidentified by Apple. I went to the Internet to try to find a solution, and most said that I should go to System Preferences, then to Security and Privacy, and select apps from all sources. There was no option to "open anyway", and when I right-click on the app, I don't have the option to open it. Any suggestions? This is so frustrating! Thank you.
Janiek
iMac 21.5″, macOS 10.14