GPTExcel
Cheap and focused: if you write awkward nested formulas a few times a week, or need a pivot table or a quick deck from a CSV, it earns its nine dollars. If you already pay for a frontier chat model that reads spreadsheets, you are paying twice for much the same capability.
Pros
- Low paid entry at $9 a month, less on annual billing
- Explain-a-formula mode is as useful as generation and is often the reason people return
- Covers Excel, Sheets, LibreOffice and Airtable syntax rather than assuming Excel
- Builds native pivot tables and downloadable slide decks from an uploaded file
Cons
- Copy-paste or download workflow: nothing runs where your data lives
- Credits refresh weekly on paid plans and do not roll over, so a quiet week is lost allowance
- Expert-model messages cost 10 credits each and are only on Pro Plus