As PCMag's resident data journalist, I practically live in Microsoft Excel. I've learned that it's capable of far more than I ...

Old-school Excel functions like SUMPRODUCT, INDEX/MATCH, and IFERROR remain essential for stable, readable, and maintainable ...

Excel is my database, Python is my brain.

Q. I get a detailed revenue transaction export from the client, and then I get it again, revised, usually after I’ve already filtered, sorted, and documented my selections. I’m tired of reapplying ...

Photolithography allows the construction of arrays with extremely high information content. Because the arrays are constructed on a rigid material (glass), they can be inverted and mounted in a ...