SheetScan - Spreadsheet Explainer

SheetScan is a React web app for finding, explaining, and fixing spreadsheet data issues.
You can upload CSV/Excel files, inspect anomalies, edit cells inline, track version history, and export both updated data and stakeholder-ready audit reports.

Features

• Upload .csv, .xlsx, or .xls files
• Automatic anomaly detection (critical, warning, missing, invalid)
• Interactive explanation panel with:
  • issue reasoning
  • same-row and same-column context
  • dependency graph visualization
  • suggested remediation guidance
• Inline cell editing (double-click any cell)
• Version history snapshots with restore support
• Download edited dataset as:
  • Excel (.xlsx)
  • CSV (.csv)
• Download shareable audit reports as:
  • PDF (.pdf)
  • DOC (.doc)

Run Locally

1) Install dependencies

npm install

2) Start development server

npm run dev

Then open the local URL shown in your terminal (usually http://localhost:5173).

Build for Production

npm run build

Preview Production Build

npm run preview