sheet-atlas

Stop wasting hours searching through Excel files manually. SheetAtlas treats multiple Excel files as a unified searchable database - no expensive BI tools needed.

Real-world use cases:
- Compare quarterly reports from different departments
- Find discrepancies in budget files across teams
- Track data changes across file versions
- Consolidate information from multiple sources

Key features:
- Load dozens of Excel files simultaneously (.xlsx, .xls, .csv)
- Search across all sheets with regex support
- Compare rows with intelligent column mapping
- Visual highlighting of differences
- Modern UI with light/dark themes

Built with .NET 8 and Avalonia UI for native performance. All processing happens locally - your data stays on your machine. Free and open source (MIT License).

Perfect for small businesses, accountants, and data analysts who need powerful Excel analysis without enterprise complexity or cost.

Windows/Linux installer available. macOS coming soon.

Features

Reads .xlsx (Excel 2007+), .xls (Excel 97-2003), .csv (Text)
Search data across multiple files
Side-by-side row comparison with color-coded differences
Automatic column alignment during comparisons

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