SuperSheet

SuperSheet is a browser-based tool designed to turn messy Excel or CSV files into professional-looking spreadsheets without requiring installations or signups. It is built for anyone who needs to clean up data, apply professional themes, or gain insights from their spreadsheets through natural language interaction.

Key Features

• Professional Formatting: Automatically cleans headers, converts text-stored numbers to valid formats, applies currency/date formatting, adds row banding, and freezes header rows.
• Smart Calculations: Adds calculated columns like revenue per unit, variance, or running totals using live Excel formulas that remain functional after download.
• AI-Powered Insights: Allows users to chat with their data to identify trends, find duplicates, or ask specific questions about their rows.
• Interactive Edits: Provides a preview of changes with 'Accept' or 'Reject' options before they are applied to the sheet.
• Privacy-First Design: Files are parsed and processed locally in the browser; no files are uploaded to a server.

How it Works

1. Drop the file: Upload .xlsx, .xls, or .csv files directly in the browser.
2. See the plan: The AI analyzes the data and proposes formatting and structural changes.
3. Watch it apply: The tool applies themes, totals, and formatting instantly.
4. Chat with data: Use plain English to ask questions or request further edits to the spreadsheet.