> 🌐 **Language:** English · [Español](README.es.md) # Excel & CSV Data Cleaning Mastery Bundle 9 Python data-cleaning tools, every one with a CLI and a browser GUI. Local-only, no internet. Windows / macOS / Linux. ## Quick Start 1. Download the installer for your OS from your purchase email. 2. Run it (no Python knowledge required). 3. Launch via the desktop shortcut → your default browser opens to a local page. Full instructions: [USER-GUIDE.md](USER-GUIDE.md). ## Docs **Buyer-facing** (ships with the product): - **English**: [USER-GUIDE.md](USER-GUIDE.md) · [CLI-REFERENCE.md](CLI-REFERENCE.md) - **Español**: [USER-GUIDE.es.md](USER-GUIDE.es.md) · [CLI-REFERENCE.es.md](CLI-REFERENCE.es.md) **Creator-only** (do not ship): - [BUSINESS.md](BUSINESS.md) — market, pricing, marketing - [TECHNICAL.md](TECHNICAL.md) — architecture, build pipeline, standards - [DECISIONS.md](DECISIONS.md) — locked criteria, decision log - [RECOVERY.md](RECOVERY.md) — full rebuild guide - [REQUIREMENTS.md](REQUIREMENTS.md) — numbered support matrix --- **Version**: 1.6 · **Updated**: 2026-05-01 · **Owner**: Michael