I'm afraid it isn't very clear. It has been tested on a Mac running 365 and didn't work very well, but was vaguely useable. I've been told by customers that it does work on Macs running older versions of Excel. This sounds very strange but Microsoft are rewriting Excel for Mac from the ground up, and support for macros isn't perfect yet. Hopefully in the near future it will be fully supported. I'd suggest you try the demo first and see if it works for you, if it does then great, go ahead and buy the full version.