CSV & Excel viewer

Open .csv, .tsv and .xlsx files as a searchable, editable grid.

Open a file

  • Excel (.xlsx, .xlsm): click the file — it opens in the viewer.
  • CSV / TSV: right-click the file in the Explorer and choose Open in CSV & Excel Viewer, use the table button in the editor title bar, or Open With….

Explore

  • Switch between every sheet of a workbook; dates, currencies and number formats look the way Excel shows them.
  • Search, sort and filter hundreds of thousands of rows. A CSV’s separator and encoding are detected.
  • Select cells for an Excel-style sum and average, or open column stats (filled, empty, distinct, min, max).
  • Export what you see as CSV, JSON or a Markdown table, or copy cells straight into Excel.

Edit

  1. Press Edit — nothing can change until you do.
  2. Click a cell to edit it, type over it or paste from Excel. Right-click to insert or delete rows and columns.
  3. Save with Ctrl/Cmd+S; undo works as in any editor.

NoteUntouched rows are saved exactly as they were, and in workbooks every untouched cell, style, chart and macro is kept. No macro runs. Old binary .xls files need saving as .xlsx first.

Guide: View and edit CSV and Excel files in VS Code →