After updating Power Query, the total sales were nearly double what they were last month—and there were no errors at all.

Years of accumulated files suddenly became patterns I could see, understand, investigate, and actually deal with.

At the end of every month, about 30 CSV files, one for each branch, pile up in a folder. I open the files, select all, copy, and paste them into a summary workbook. Doing this 30 times takes about 40 ...

Microsoft Excel now supports multiple values, Lists, nested arrays, and new array functions inside a single cell for Insider users.

Microsoft ends fallback support for EWSEnabled=True, forcing administrators to explicitly whitelist required application IDs or risk sudden service outages.

Tableau Prep is two tools sharing one name. Prep Builder is where you clean and shape data into flows, on the desktop or on ...

Microsoft is changing a 40-year-old Excel rule by allowing a single cell to hold multiple values using new lists, arrays in cells, and nested arrays.

It's that time of the month again: when Microsoft recaps everything new that it introduced in Excel during the past four weeks. This roundup is useful because it allows us to see the improvements ...

Excel in-cell arrays can hold lists and nested results in one cell, but Beta-only access and gaps in charts, PivotTables and Power ...

AI data preparation is the unglamorous half of working with data: cleaning, joining, and reshaping raw tables while an AI ...

Select a cell and use Insert > List or press Ctrl+J to create a list.

From the laptops on your desk to satellites in space and AI that seems to be everywhere, I cover many topics at PCMag. I've covered PCs and technology products for over 15 years at PCMag and other ...