Editora 0.9.10. Archived, so links from that release keep working. Read the 0.18.5 page →
CSV: Export to Excel
csv.exportExcel Export the active CSV/TSV file to an Excel .xlsx workbook.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for CSV: Export to Excel, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.