View: Toggle CSV Grid Preview
view.toggleCsvGrid Turn the in-editor CSV/TSV grid preview on or off (the floating Editor/Split/Preview toggle on .csv/.tsv files).
How to run it
Open the command palette (M-x in the Emacs keymap) and search for View: Toggle CSV Grid Preview, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.