CSV Cleanup Kit — Offline Python and Printable Checklists

Clean a copy of a small CSV export, inspect what changed, and leave a clear handoff record. This kit is for freelancers and small teams already comfortable handling CSV files.

The one-time ZIP contains four printable worksheets in A4 and US Letter PDFs, an offline Python cleanup script, a fictional inventory CSV with expected cleaned CSV and JSON report, setup instructions for macOS/Linux and Windows PowerShell, and a single-business licence. The PDFs are printable, not fillable. The optional tool needs Python 3.10+ and basic terminal familiarity; no extra Python packages, account, hosted service or paid API is required.

The tool supports small comma-delimited UTF-8/UTF-8-BOM exports. It renames headers to ASCII snake_case, normalizes all cell whitespace, pads short rows, removes fully empty rows and exact duplicates after cleanup, and converts only dates whose format you specify. These transformations can change meaning. Unparsed dates and missing values still need human review. Semicolon/tab delimiters and unsupported encodings are outside scope. Formula safety, accounting reconciliation and spreadsheet import compatibility are not guaranteed; do not enable untrusted formulas, links or macros. Preserve the untouched original and choose new output/report names: existing destinations and aliases are refused.

This is a local command-line utility and printable workflow, not an Excel workbook/add-in, browser app, custom cleanup service or AI service. It never uploads your files. Original materials were created with AI assistance and checked with fictional examples. Digital download only; no physical delivery, custom work or outcome promise. One business may use and adapt the kit, including completed client records; redistribution or resale of the blank pack is excluded. Mandatory consumer rights remain unaffected. Use the purchase/project support route for download questions; do not send private files to the seller.