In short: Match reordered records by business key and stream large CSV or TSV datasets locally.
Match rows by business key
Choose one or more columns such as SKU, order number, customer ID, or email. Table mode matches the same record even when row order changes between exports.
Distinguish record changes
The result separates added, removed, and changed records instead of reporting every reordered row as different. Composite keys are available when one column is not unique.
Stream large datasets
CSV and TSV inputs are read as streams rather than loaded into the renderer as a complete grid. Results are returned in bounded pages to keep filtering and navigation responsive.
Keep comparison evidence
Export deterministic CSV or JSON from the CLI, or create an audit report from the desktop workflow. Formula-like CSV output cells are escaped before writing.