I will optimize your CSV and spreadsheets exports

If a report takes hours every week and nobody fully trusts the number, send me one sample file and the definition of a correct total.

Basic: Clean one CSV or spreadsheet export up to 10,000 rows under an agreed rule list (types, formats, obvious duplicates). Returns a tidy CSV with a changelog of changes.

Standard: Basic cleanup plus one recurring report over up to 3 input files, with agreed date filters, totals, CSV export, and a saved snapshot.

Premium: Standard plus up to 10 agreed validation rules (such as duplicate and missing-value checks) and written operating notes.

Out of scope by default: open-ended data fixes, spreadsheet formula or macro development, dashboards, and live integrations.

Groundwork I draw on: fixing a report whose totals were untrusted until measurement rules were versioned and date windows made inclusive; an analytics import that refused test data due to outdated fixtures; a reporting suite that failed on the first day of a new month because fixtures used the current date.

Please strip or mask private values in the sample. One revision round is included.