SheetAtlas

SheetAtlas is a free, cross-platform tool for searching and comparing multiple Excel files as a unified database. 100% offline — your data never leaves your computer.

KEY FEATURES

Unified Search
Load unlimited files (.xlsx, .xls, .csv) and search across all sheets with regex support.

Row Comparison
Compare rows from different files with intelligent column mapping and visual diff highlighting.

Data Export
Export to Excel or CSV with column filtering, semantic names, and preserved formatting.

Template Validation
Create templates, batch validate files, detect type inconsistencies.

Customization
Light/Dark/System theme, configurable defaults, custom output folder.

PLATFORMS
Windows, Linux, macOS — native installers available.

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
Templates management
Column linking, grouping, filtering
Customizable Settings

Project Samples

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