Now you can define your own re-usable functions with LAMBDA
Introducing the LAMBDA function

Now you can define your own re-usable functions with LAMBDA
Tired of arguing the relative merits of VLOOKUP or INDEX/MATCH? Well, now there's a new one to add. XLOOKUP is here to be a quicker, smarter VLOOKUP and XMATCH overhauls MATCH. Read on for details!
LET lets you name parts of your formulas! This is one of those features that has more power than we might first realize; chances are its use will increase dramatically over time as its utility becomes more obvious.
Use the STOCKHISTORY function to easily pull stock price data and history.
Create Visio diagrams using the new Data Visualizer add-in for Excel.