Microsoft has not written IE for Mac for many years.
An alternative is to use VMWare (virutualization software) or use BootCamp located in HD > Applications > Utiliites to create a partition where you can install Windows but that's major undertaking for just running IE on your Mac.
Another alternative, using Safari. From the Safari menu bar click Safari > Preferences then select the Advanced tab.
Select: Show Develop menu in menu bar
Then from the Safari menu bar click Developer > User Agent then try IE 9, 8, or 7. No guarantees that will help.