You should convert the VBA macros into an Excel plugin, the API is almost exactly the same and so it shouldn't be too hard. We recently converted an Outlook mac

You should convert the VBA macros into an Excel plugin, the API is almost exactly the same and so it shouldn't be too hard. We recently converted an Outlook macro here at work into a plugin so that it was much easier to distribute through the office, it also avoids all the security warnings you get with macros.