Fixed-scope service · version 1.0.0

Reconcile two CSV files by one exact key.

Receive unmatched-key lists, a changed-cell table, a JSON audit report with source hashes and the reproducible Python script.

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Accepted input

Two comma-delimited CSV files, each up to 20,000 data rows and 50 columns. UTF-8 and GB18030 are supported.

Comparison

One nonempty, unique, exact key. Shared columns are compared as text; leading zeros are preserved. No fuzzy matching unless separately agreed.

Delivered files

Left-only and right-only key CSVs, changed-cells CSV, JSON report with SHA-256 hashes, and the Python script used.

How it works

  1. Open a public request with fictional sample rows only.
  2. Confirm the key, encodings, comparison columns, output names, deadline and acceptance checks.
  3. After scope acceptance, use the agreed private file-transfer route and PayPal payment.
  4. Delivery is normally within two business days after valid inputs and payment.

Boundary: no credentials, payment-card data, medical records, regulated records or other highly sensitive data. The service reports exact differences; it does not make accounting judgments, infer missing values, access SharePoint or modify a live system.