Thanks for all your votes and comments about enabling support for UserForms in Excel for Mac.
With emphasis on enabling more and more capability using Office add-ins in Excel that will work across platforms, we don’t expect to add support for creating and modifying UserForms.
Please see this article for more information about what you can do in Excel with Office add-ins.
An error occurred while saving the commentDon S commented
Microsoft. Please be honest and tell us what, if anything, you intend to do on VBA user forms for Mac. Dropping this support has severely impaired my ability to get things done. But, if you've really abandoned us, we need to know it -- write off our Office purchase, find a work-around, and walk away