Import/export add-on for the gridcn data grid: xlsx and csv, with delimiter detection and preview. New user-facing strings live under `labels.io` (see lib/labels.ts DataGridIOLabels) — export button/menu, import dialog (file picker, header-row toggle, delimiter select, column mapping, preview, errors).
pnpm dlx shadcn@latest add "https://gridcn.vercel.app/r/data-grid-io.json"