> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tablixhq.com/llms.txt
> Use this file to discover all available pages before exploring further.

# FAQ

> Answers to common Tablix questions: pricing plans, file formats, Python/SQL execution, data privacy, sharing, and AI Assistant features.

<AccordionGroup>
  <Accordion title="Is Tablix free to use?">
    Tablix has a free **Starter** plan (10 files, 20 AI messages/month) plus two paid plans, **Beginner** ($5/mo) and **Professional** ($10/mo), with higher AI message quotas and unlimited files. See [Payment & Billing](/payment) for the full breakdown and checkout flow.
  </Accordion>

  <Accordion title="How do I upgrade, and how does billing work?">
    Go to **Settings → Billing & Plans** and pick a plan — you're redirected to a **Dodo Payments** checkout page. To manage or cancel later, use the **Manage Subscription** button, which opens the Dodo customer portal. Tablix never stores your card details itself. See [Payment & Billing](/payment).
  </Accordion>

  <Accordion title="Do I need an account to use Tablix?">
    Yes — Tablix requires signing in with a **Google** or **Microsoft** account. There's no guest/no-account mode.
  </Accordion>

  <Accordion title="How do I sign in?">
    Tablix supports signing in with **Google** or **Microsoft**.
  </Accordion>

  <Accordion title="Where are my spreadsheets saved?">
    Spreadsheets are saved in Tablix's native `.sheet` format and synced to your connected **Google Drive**. If Drive isn't connected, you'll be prompted to connect it from the dashboard.
  </Accordion>

  <Accordion title="What file formats can I import?">
    `.xlsx`, `.csv`, `.json`, `.xls` (legacy format — shown with a compatibility warning), and Tablix's own `.sheet` files.
  </Accordion>

  <Accordion title="What file formats can I export to?">
    `.sheet` (native), `CSV`, `XLSX`, `PDF`, and `HTML`.
  </Accordion>

  <Accordion title="Does my data get sent to a server when I run Python or SQL?">
    No — Python execution (via Pyodide) and SQL execution (via sql.js/SQLite-WASM) both run **entirely inside your browser** in background Web Workers. Your data isn't sent anywhere to run that code. The AI Assistant's *code generation* step does call out to Tablix's AI service so it can write the Python/SQL/formula for you — but the resulting code still executes locally in your browser.
  </Accordion>

  <Accordion title="What Python libraries are available?">
    `pandas`, `numpy`, `scikit-learn`, and `scipy`. Libraries like `matplotlib` are not available — use the built-in `create_chart()` function or the Chart editor for visualizations instead.
  </Accordion>

  <Accordion title="Can I connect an external database?">
    Yes — Tablix can connect to **Neon** (Postgres), **Supabase**, and **Notion** workspaces, letting you browse and load their tables into a sheet. See [SQL → External Databases](/sql#external-databases).
  </Accordion>

  <Accordion title="Does Tablix have pivot tables?">
    Yes — select a data range, open **Insert → Pivot Table**, and drag fields into Rows/Columns/Values/Filters to build a summary table. See [Pivot Tables](/pivot-tables) for the full guide.
  </Accordion>

  <Accordion title="Can I share a spreadsheet with someone else?">
    Yes — click **Share**, make the file public, and choose **Viewer** (read-only) or **Editor** access. Anyone with the link can open it without needing a Tablix account. See [Sharing & Collaboration](/sharing).
  </Accordion>

  <Accordion title="Can the AI make mistakes?">
    Yes. Tablix displays a reminder that "TablixAI may make mistakes" — always verify generated formulas, code output, and calculated values, especially before using them for financial or other high-stakes decisions.
  </Accordion>

  <Accordion title="What's the difference between Chat mode and Agent mode?">
    **Chat** mode handles a single request with a single response. **Agent** mode (the Agentic Loop) breaks a larger goal into multiple steps and executes them one at a time automatically, using each step's result to plan the next, until the goal is complete.
  </Accordion>

  <Accordion title="Can I use voice input with the AI Assistant?">
    Yes, via the microphone icon in the AI Analyst sidebar — this uses your browser's built-in speech recognition, so support depends on your browser. See [Troubleshooting](/troubleshooting).
  </Accordion>

  <Accordion title="How do I see all available spreadsheet functions?">
    Open the **Functions** sidebar to browse the full list by category (Math, Statistical, Logical, Text, Date & Time, Financial, Lookup, Array, Database, Lambda, and more), each with syntax and an example.
  </Accordion>

  <Accordion title="Can I have more than one sheet in a workbook?">
    Yes — add, rename, and switch between sheet tabs at the bottom of the editor.
  </Accordion>

  <Accordion title="Can I lock a sheet from being edited?">
    Yes — sheets support a "protected" state that blocks editing while still allowing navigation, copying, and searching.
  </Accordion>
</AccordionGroup>