Method

The merger parses quoted CSV fields, validates that both header rows match exactly, keeps the header once, and appends the data rows from the second dataset after the first.

Worked example

A file containing Ada and Lin followed by a second compatible file containing Mia becomes one three-row CSV with a single header.

Privacy

The CSV text stays in the browser.

Limitations

v1 requires compatible headers. It does not perform relational joins, schema inference, column mapping, deduplication, type coercion, or automatic delimiter detection.

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