# Sheets

> Spreadsheet modelling built on a governed query result — a familiar A1 grid with formulas, formats, multi-tab workbooks, and real-time collaboration.

*[View this page in the Flax docs](https://flax-analytics.com/docs/sheets/overview)*

A sheet is a spreadsheet built on top of a query result. You get the familiar A1
grid — formulas, cell references, number formats — layered over data that still
comes from your governed semantic model. It is where analysts do the last mile of
modelling that does not belong in the warehouse.

## What a sheet is made of

Following [spreadsheet modelling](/docs/modeling/overview) (ADR-0018), a sheet
combines three things:

- **A bound range.** The left-hand columns are the rows and columns of a saved
  exploration — the same governed result you would get in
  [Explore](/docs/exploring/overview). Refresh it and the data updates against the
  current model version.
- **Calculated columns.** Expressions defined over the bound fields. Because they
  are set-oriented, they can round-trip back to warehouse SQL.
- **Free A1 cells.** Anywhere outside the bound range you can write ordinary
  spreadsheet formulas — `A1` and `$A$1` references, ranges, and a broad
  [function library](/docs/sheets/formulas-and-functions).

## Working in a sheet

Open **Sheets** at `/app/sheets`, create a workbook, and bind a tab to an
exploration. From there you can:

- Write [formulas and functions](/docs/sheets/formulas-and-functions).
- Organize work across [multiple tabs](/docs/sheets/workbooks-and-tabs) that
  reference each other.
- Apply [editing features](/docs/sheets/editing) — formats, sort, filter, find &
  replace, insert/delete, undo/redo.
- [Export](/docs/sheets/import-export) to CSV or Excel.
- [Collaborate](/docs/sheets/collaboration) in real time with presence and version
  history.

> [!NOTE]
> Governed values from the bound range are always visible and findable, but you
> cannot overwrite them — the semantic model stays the source of truth.

## Next steps

- [Formulas and functions](/docs/sheets/formulas-and-functions)
- [Workbooks and tabs](/docs/sheets/workbooks-and-tabs)
- [Querying & exploring](/docs/exploring/overview)
- [Visualizing data](/docs/visualizations/overview)