Data Workbench: CSV Reconciliation Tool

I designed and built Data Workbench, an independently developed Elkwai Solutions product, to make CSV reconciliation a reviewable workflow. Users select a baseline and candidate export, choose identifier columns and comparable fields, then run the comparison. Identifiers remain text, so leading zeros are preserved. Ambiguous IDs are flagged rather than silently matched or deleted.

The implemented report separates changed values, records present in only one export and ambiguous identifiers. Users can inspect row-level differences and download CSV detail or a JSON report. Spreadsheet exports include formula-injection protection. These October 2, 2026 captures show an actual run using the product’s included example files, not customer records. My work covered product UX, responsive frontend development, comparison logic, data-quality handling and report exports.