Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.

Anthropic upgraded Claude’s Excel and PowerPoint add-ins with shared context, reusable Skills, and cross-app workflows for business users.

Excel users are warned to update now, as a critical vulnerability has been confirmed that can lead to “zero-click information ...

Turn generic columns into custom visuals by adding floating totals, nesting series, and layering simultaneous data labels.

Build more efficient spreadsheets by using the dollar sign to lock specific rows, columns, or permanent addresses when referencing cells.