This tells Excel to add all the numbers from cells A2 to A6 in one simple step. Every Excel formula starts with an equal sign (=). This is like telling Excel, "Hey, we're about to do some math!" ...

We can use two functions to add a prefix to multiple (or all) entries across a column. The first one ... cell in the column for which we need to add the prefix is A3, and the prefix is TWC, the ...