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Enables AI agents to inspect and safely edit .xlsx workbooks — reading ranges, searching cells, checking formulas, writing values or formulas, appending rows, and converting CSV — while preserving formulas and styles, dry-running edits by default, and refusing any save that would destroy charts, pivots, macros, or other features.

Enables AI agents to inspect and safely edit Excel workbooks by distinguishing formulas from cached values, previewing changes with dry runs, detecting what a save would lose, and refusing unsafe writes.