Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with confidence.

Upgrade from static snapshots to a live-updating system that handles complex repeats with ease.

Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

Master row randomization in Excel using the classic helper column method or the dynamic SORTBY function.

Light can be sculpted into countless shapes. Yet building optical devices that can simultaneously manipulate many different optical patterns at once is extremely complicated, and remains a major ...

Artificial intelligence was the dominant technology story of 2025, and will remain so in 2026. For better or worse – or, more ...

Many rivals relax with a game of golf, whereas stock picker Thomas Rice’s passion is for computer coding, and his investment ...

Features like smart wash programmes, higher spin speeds, load sensing, and easy-access controls help top load washing ...

Microsoft adds IMPORTTEXT and IMPORTCSV to Excel, letting users pull text files directly into the grid with simple formulas.

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