At one time, the IE Mac edition was the default browser for all the Apple computers.
This is due to the fact that the agreement between Apple and Microsoft regarding the Microsoft IE Mac edition ended way back in 2003.
If you visit the official website of Microsoft, you wouldn’t find Internet Explorer for Mac available for download. If you don’t know how to download Internet Explorer for Mac, you can follow the instructions given in this write-up for doing so. How to Download Internet Explorer for Mac