Fragmenting your data across many Excel tabs is a common habit that silently kills file performance, introduces hidden errors ...

Learn when FILTER beats XLOOKUP, when it does not, and how to handle multiple matches, nth items, and multi-condition lookups with clear steps.

We congratulate Celeste Porsbjerg and colleagues for their Series paper1 addressing a key question in asthma care: the definition of the ideal candidate for biological therapy. Porsbjerg and ...

The treatment landscape for systemic lupus erythematosus (SLE) has shifted greatly in recent years, driven by the emergence ...

The @ symbol can also appear in regular formulas outside of tables when Excel thinks you're trying to reference a single value from a range. If you see it pop up unexpectedly, it usually means Excel ...