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Spreadsheet CSV & Excel Grid Editor

Processed in your browser

View, edit, and manipulate CSV and Excel data tables in an interactive grid with formulas and instant export.

fx Formula: of Column:

Result: —

Total Rows: 0 · Columns: 0

💡 Click any cell to edit directly

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Structured Data Transformation Pipeline

Direct In-Browser Handoff

Chain this tool with complementary private browser utilities for a complete zero-server workflow:

TSV to CSV Spreadsheet Converter

Structured Data Tools · Processed in your browser

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JSON to CSV

Structured Data Tools · Processed in your browser

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CSV to JSON

Structured Data Tools · Processed in your browser

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Helpful Examples

Inventory SKU Spreadsheet

Stock count and unit pricing spreadsheet

Product ID,Item Name,Category,Unit Price,Quantity
SKU-1001,Ergonomic Desk Chair,Furniture,199.99,45

How to Use the Spreadsheet CSV & Excel Grid Editor

In-browser spreadsheet grid editor. Load large CSV, TSV, or spreadsheet files, edit cells directly, insert rows/columns, run aggregate formulas (SUM, AVG, MIN, MAX), and export to CSV or JSON with zero server uploads.

Privacy & Data Processing Notice

No user data leaves your browser. Computation is executed entirely on your device. We do not store, view, or transmit your inputs over our network. Your computation remains on your personal machine.

Frequently Asked Questions

Can I edit CSV cells directly?

Yes. Every cell and column header in the grid is contenteditable. Simply click any cell to edit its value.

What formulas are supported?

SUM (total sum), AVG (average), MIN (minimum value), MAX (maximum value), and COUNT (numeric cell count).

Can I export my spreadsheet to JSON?

Yes. You can export clean CSV files or structured JSON objects where table headers automatically become object keys.

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