Excel validation checks — companion sample

Companion view of the same fictional Excel/CSV cleanup demonstration shown in my portfolio. This is not a separate paid client engagement.

The sample accounts for all seven input rows: four accepted records, one duplicate and two invalid rows. Checks cover text IDs with leading zeros, one agreed duplicate key and invalid numeric values. Ambiguous records are flagged for review.

The original input stays unchanged. Delivery criteria are agreed before each project, with a cleaned file, exceptions report and instructions. Only this illustration is public; the professional editable model is not published.