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CSV Viewer (Open Large CSV & Excel Files)

Open CSV, Excel and JSON files in your browser — search, sort and page through thousands of rows, see a summary of every column, and export to CSV, Excel or JSON. Nothing is uploaded.

How to use

  1. 1Drop a CSV, TSV, Excel or JSON file, or paste data.
  2. 2Search, sort columns and page through the rows.
  3. 3Switch to Column summary for types, counts and min/max/averages, or export.

Frequently asked questions

How large a file can it open?

Files of tens of megabytes (hundreds of thousands of rows) open fine on most computers — it depends on your device's memory.

Is my data uploaded?

No. The file is read in your browser and never leaves your device.

Can it open Excel files?

Yes — XLSX, XLS and ODS, including workbooks with several sheets.