Encryption can protect your data from crooks, but if you don't have a recovery key stored securely, it can also keep you out ...

REDUCE allows you to iterate through your data, building your result step-by-step, in the same way a loop operates in a programming language. Instead of scattering your intermediate calculations ...

D espite its age, Excel continues to evolve with new functions being added over time. There are newer better Excel functions that you should use instead of the old ones. But, there are also some old ...