LAMBDA lets you turn repeated Excel logic into reusable functions that update automatically across your entire workbook.

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Consider sunscreen as one part of your overall skin cancer protection plan, year-round, especially if staying in the shade and wearing protective clothing aren’t available as your first options.

What really happens after you hit enter on that AI prompt? WSJ’s Joanna Stern heads inside a data center to trace the journey and then grills up some steaks to show just how much energy it takes to ...