CSV Export Desk — Offline CSV Merge & Cleanup Pack

Combine recurring CSV exports and keep a clear record of the cleanup.

Open the included file in your desktop browser, choose your exports, and review the result. Columns line up by header name, even when their order changes. Optionally trim whitespace and remove exact duplicate rows.

You can download:

• A combined CSV with source-file and record references.

• The removed duplicates, including the location of the retained copy.

• A cleanup report with counts and settings.

Files are processed on your device. No upload, subscription or internet connection is required to use the downloaded tool.

Includes: the offline tool, step-by-step instructions and two sample exports. Use it for your own personal or internal business work. Resale is not included.

Supports UTF-8 CSV/TSV, comma/semicolon/tab separators, up to 20 MB per batch, 100,000 data rows and 200 columns. Desktop Chrome tested. This is a row-stacking tool, not an Excel workbook editor or an ID-based database join tool.

Spreadsheet protection is enabled by default and can alter formula-like values, including negative numbers, to text. Review the result and keep your originals. Read the included guide for handling identifiers with leading zeros.

Prepared with AI assistance. Examples use synthetic data. For support, please use the store contact page and share only synthetic or redacted examples.