The CHOOSECOLS and CHOOSEROWS functions in Google Sheets are ideal for quickly extracting specific columns or rows from your ...

The lookup function in Excel can save you a lot of time and effort, but only if you actually know how to use its many forms and alterations.

Microsoft Excel's new FILTER() function is a great tool for reporting and dashboards. We'll show you how to use it to get more done.

You use these functions when you want to find values based on the value in a corresponding cell. Thanks to the newish dynamic array function XLOOKUP (), you now have more power and less confusion.

NumPy is known for being fast, but there's always room for improvement. Learn how to use Cython to iterate over NumPy arrays at the speed of C.

Excel running totals made easy with dynamic arrays. Explore advanced functions for accurate, flexible data handling and improved performance.

Other array-based functions include SORTBY and RANDARRAY. The SORTBY function works like the SORT function, except it sorts data according to data contained in another array. For example, you might ...

If you see You can't change part of an array error while trying to use the Sort, Delete, Edit, or some other feature in Microsoft Excel, see this post.