Quite a few retailers still have stock, just Google for it. If you don't have a link there, I'm afraid you'll have to buy a copy of Office 2011. If there is no link, it's because MS is tracking whether you actually had 2011 installed through Office 365 previously. Office 2016 will be uninstalled and 2011 reinstalled. Choose your preferred language and click on the Install button.Hopefully, just below that, there will be a link for you to click on Install previous version. Just to the left of the Install button, it should say Office 2016 for Mac.Open a web browser and sign in to your Microsoft account at this page:.It may be possible to downgrade through your Office 365 subscription. You'll have much better luck with Office 2011, which has 99% of VBA supported. The Mac version has feeble support for VBA, though it is gradually improving with every update. There is now Office 2016 (which is for Windows) and Office 2016 for Mac.
