For many, the INDEX-XMATCH combination in Excel is the go-to method for retrieving a value from a dataset. However, you can also use this dynamic duo to perform two-way lookups, returning a value at ...
In 1868, the mathematician Charles Dodgson (better known as Lewis Carroll) proclaimed that an encryption scheme called the Vigenère cipher was “unbreakable.” He had no proof, but he had compelling ...