A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
I've seen comment elsewhere from MS that new functions (not just these, but all new functions going forward) will only be added to O365.
Those of us that want to buy it once and only buy a new copy when we decide we want the next generation of features are no longer considered valued customers and will not get them no matter how much we might choose to spend on future versions.