Excel functions like XLOOKUP and MATCH lack the ability to look up values in multiple rows or columns. However, this problem is circumvented with the help of MMULT, which returns the matrix product of two arrays. Before diving into the…

Yesterday, I covered the new BYCOL function, which allows you to perform calculations on columns in an array. Guess what? There’s also a BYROW function! Predictably, it does the same thing for rows instead. Here’s the syntax: Whereas BYCOL calculated…

The new BYCOL function is currently only available to Office Insiders, but it promises to make calculating columns easier and more efficient. The Sales by Month table contains monthly sales figures for six products. If you wanted to calculate the…

A running total is the summation of the current and previous numbers in a column. It’s a useful way of keeping track of sales figures over a time period or for monitoring the balance on a bank statement. Have a…

The RANDBETWEEN function provides a non-dynamic array solution to creating a set of random numbers. It returns an integer between the minimum and maximum values you specify. The problem is, however, it is likely to return duplicates after each worksheet…