This makes sense, seeing it was once a Windows exclusive browser, and Microsoft has shifted to Microsoft Edge in recent years. Alternatively, there are emulators that can create a virtual machine on your M1 mac that emulates an entire Intel machine. Microsoft hasn't released an official Mac version of Internet Explorer since version 5.2.3 in 2005, which means that the browser isn't officially supported on macOS. Things to look at: does windows for ARM have a copy of IE, and if it does: is it good enough for your needs? - if so: you could try Parallels + Windows for ARM technology preview (but you cannot buy a license for that windows at this time - legal at your employer might object). This is not so easy on an M1 than it was on an Intel based mac. Get a virtual machine on your M1 mac to run windows and IE in it in a virtual machine. To use Microsoft Edge or Internet Explorer on Mac: Go to the Develop menu in Safari’s menu bar Navigate to User Agent and select the browser you’re looking for, whether it’s Microsoft Edge, any of the Internet Explorer versions, Google Chrome, Firefox, etc. Get a remote desktop to a windows machine that has the right version of IE for your needs.

You could try 2 avenues, neither is super easy. Even Microsoft eventually saw the mistake and switched to Edge. Some companies drank too much of the Microsoft cool-aid in the days when IE was dominating the browser wars and built stuff that only IE will ever support. And it's even more dead on mac, let alone on M1 based ones.

Use internet explorer on mac