All-in-one
Every spreadsheet tool in tabbed view
Excel workbench
Drop a `.xlsx` / `.xls` / `.csv` file. Everything stays on your device.
About All-in-one
The Spreadsheets bundle is the directory for CSV / Excel / Google Sheets utilities — viewer, splitter, dedupe, format converter, formula cheat-sheet. Browser-only; your file never uploads.
Frequently asked questions
~50MB / ~500k rows. Beyond that, a desktop tool (Python pandas, R, or Excel itself) is faster.
Both — tools auto-detect format. CSV preserves better across systems; XLSX preserves formulas and formatting.
No — download as CSV/XLSX from Sheets, process here, re-upload. No Google account integration needed.
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All-in-one
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