Excel users can't auto-color cells by date or checkbox status.

Executive Brief

Excel tracker builders (order/shipping coordinators, trainers, and teams migrating from Smartsheet) repeatedly struggle to make cells auto-color from dates, dropdown selections, or checkbox states because conditional formatting requires hand-written formulas that are hard to author and often fail or stop updating when data changes. The opportunity is a plain-English rule-builder taskpane add-in or wizard that converts natural rules — color by weekday, fill when a date is N working days after another column, fill on dropdown value or checkbox — into correct Excel conditional formatting rules. Evidence is concentrated (three users across three threads in one week) with no measurable search demand, and native Excel plus AI alternatives (Microsoft Copilot and Kutools' AI conditional-formatting feature) create real competition, so the wedge must be narrow, deterministic, and vertical.