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CSV/Excel Viewer & Editor

View, edit, sort, and filter CSV and Excel files in your browser. Free online spreadsheet viewer with export capabilities.

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Drop CSV or Excel file here
Supports .csv, .tsv, .xlsx, .xls

What is CSV/Excel Viewer & Editor?

CSV/Excel Viewer & Editor is a free online tool that lets you open, view, edit, sort, and filter CSV and Excel spreadsheet files directly in your browser. Upload a .csv, .tsv, .xlsx, or .xls file to instantly explore your data in a searchable, sortable table. Edit cells inline, add or remove rows and columns, and export your changes as CSV or Excel. All processing happens locally in your browser — your data never leaves your device.

Common Use Cases

Quick Data Inspection

Open CSV or Excel files to quickly review data without installing spreadsheet software like Excel or Google Sheets.

Data Cleaning

Edit cells, delete unwanted rows or columns, and export a cleaned version of your dataset.

Search & Filter

Search across all columns to find specific records in large datasets instantly.

Format Conversion

Convert between CSV and Excel formats by importing one format and exporting the other.

How to Use This Tool

  1. Drag and drop a CSV, TSV, or Excel file onto the upload zone, or click to browse
  2. View your data in a sortable, searchable table
  3. Click any column header to sort ascending or descending
  4. Use the search box to filter rows across all columns
  5. Click any cell to edit its value inline
  6. Add or delete rows and columns using the toolbar buttons
  7. Export your data as CSV or XLSX using the export buttons

Frequently Asked Questions

What file formats are supported?
The tool supports CSV (.csv), TSV (.tsv), and Microsoft Excel (.xlsx, .xls) files. All common spreadsheet formats are covered.
Is my data secure?
Yes! All file parsing and editing happens entirely in your browser. Your data is never uploaded to any server.
How large a file can I open?
The tool can handle files up to 50MB. For very large files, data is paginated at 100 rows per page for smooth performance.
Can I edit cells and save changes?
Yes. Click any cell to edit it inline, then click away or press Enter to save. Use the Export buttons to download your modified data as CSV or Excel.
Does sorting or filtering modify my original file?
No. Sorting and filtering only change the display. Your original data remains intact. Only cell edits, row additions, or column changes modify the working data.

Related Tools

JSON to CSV Converter → JSON Formatter →

CSV/Excel Viewer & Editor is a free online tool that requires no signup or installation. It works directly in your browser, keeping your data private and secure.