---
title: "build xls/x · RUAL Documentation"
description: "Generates a xls / xlsx file."
canonical: https://docs.rual.nl/block-types/files/file_to_xlsx
language: en
---

# build xls/x

This block is part of the [`files`](https://docs.rual.nl/block-types/files) group and was last modified in core [`v13.0.5`](https://docs.rual.nl/core-versions/130005).

Generates a xls / xlsx file.

- flow `flow`

- filename required `value`

- extension required `value`

- headers required `array`

- values required `array`

- array of arrays `aoa` required `array`

- options `object`

- flow `flow`

- success `condition`

- error `value`

- file `file`

| `Excel` |
| --- |

### Core Releases