Talk to Excel in DeepSeek Harness: read, edit, clean and report on spreadsheets by conversation. Re-checks every formula after each edit, repairs silent errors, and needs no local Excel for the core work (charts and PDF export use Windows Excel).

Turn any DSH selection into a reviewable quote — comment / add to chat / side chat, source highlights and jump-back, a searchable review list, side threads, revisions, and per-quote reply badges.