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CSV & TSV Preview

CSV and TSV files render in a spreadsheet-style preview pane alongside the editor, so you can read delimited data as a table instead of raw text.

CSV preview with a cell being edited inline

You can edit cells directly in the grid:

  • Type to edit — start typing in a selected cell to replace its contents, or double-click to edit in place.
  • Paste tabular data — paste rows and columns from your clipboard or another spreadsheet.
  • Keyboard navigation — move between cells with the arrow keys, Tab, and Enter.

Edits commit when you move away from a cell and flow back into the underlying file, with full undo/redo support. Because the grid and the text editor share the same model, changes you make in either view stay in sync.

Two settings control the preview:

When a file exceeds the size limit, Tachi Code keeps it open in the editor and skips the grid preview.