WITAN

Docs · Pricing · Security

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# Spreadsheets for autonomous agents

Trust your agent to build spreadsheets that survive contact with any
business. Witan gives agents a self-verification loop and 100%
bidirectional compatibility with Microsoft Excel & Google Sheets.

Formats: .xlsx, .xlsm, .xls, .gsheets

Docs: https://docs.witanlabs.com/products/spreadsheet/
Quickstart: https://docs.witanlabs.com/products/spreadsheet/quickstart

## The tools that let your agent verify they're building correctly

- **Render** — A dedicated rendering engine lets your agent see the visual
  impact of its changes in the file directly. No more overflowing text in
  cells or wonky tables.
- **Calculate** — A calculation engine gives complete, bidirectional
  compatibility with Excel. Rather than writing formulas and hoping for the
  best, your agent can calculate just like it would in Excel.
- **Lint** — Let your agents verify and catch their mistakes before they hit
  production.

## Supporting the most complex spreadsheet operations

- **Charting** — Extensive chart coverage gives perfect graphs regardless of
  complexity. Full support for 2D charts including scatter, radar, stock,
  pareto, funnel, and surface graphs.
- **What-if analysis at scale** — Run what-if analysis from a single variable
  to thousands of combinations. Witan runs everything from a single Excel data
  table to thousands of input combinations in one pass, returning every result
  alongside the stats that summarise them.

## Testimonial

"A lot of providers are happy to cover the initial 50% that gets users off
the ground, but with Witan we trust that we can now handle almost anything
our users bring to us."
— Chester De Wolfe, Engineering @ ModelML

## Get started

```sh
curl -fsSL https://witanlabs.com/install.sh | sh
```

SPREADSHEETS

Trust your agent to build spreadsheets
that survive contact with any business.

Read the docs

The tools that let your agent
verify they're building correctly

RENDER

Allow your agent to format their workbooks perfectly.

A dedicated rendering engine means your agents can see the visual impact of their changes in the file directly. No more overflowing text in cells or wonky tables.

CALCULATE

Calculation engine gives complete, bidirectional compatibility with Excel.

Rather than writing formulas and hoping for the best, your agent can now calculate just like you would in Excel, giving total compatibility with Excel.

LINT

Let your agents verify & catch their mistakes before hitting production.

Static checks surface broken references, type mismatches, and risky formulas so issues are caught long before a user ever opens the file.

Supporting your agents in handling
the most complex spreadsheet operations

A grid of chart types rendered from a workbook

CHARTING

Extensive chart coverage, giving perfect graphs regardless of complexity.

Full support for all 2D charts — including scatter, radar, stock, pareto, funnel, and surface graphs — so your agents can produce exactly the visual a report calls for.

View the full compatibility list

WHAT-IF ANALYSIS

Run what-if analysis at scale, from a single variable to thousands of combinations.

Let your agents see exactly how outputs shift when inputs change. Witan runs everything from a single Excel data table to thousands of input combinations in one pass, returning every result alongside the stats that summarise them — so agents can pressure-test a model without brittle, hand-rolled recalculation.

Learn more

Trusted by teams whose agents always need to be correct. Those that cannot afford a quiet mistake.

::: ::: :::

“A lot of providers are happy to cover the initial 50% that gets users off the ground, but with Witan we trust that we can now handle almost anything our users bring to us.”

Chester De Wolfe

Engineering @ ModelML

Install and test it on
your own machine.

Our personal tier is free to use and requires no sign-in

# 1. Install

# 2. Skills

npx skills add witanlabs/witan-cli

# 3. Use it

witan xlsx exec compute-monthly.xlsx --create --save --stdin @<<'WITAN'
      await xlsx.addSheet(wb, "Data")
WITAN

Trust your agent to build spreadsheets that survive contact with any business.

The tools that let your agent verify they're building correctly