---
url: /process-functions/workbook-open.md
description: Opens an Excel file as an Apache POI workbook.
---

# workbook.open 

::: warning Deprecated
Use [`workbook.excelWorkbook(fileName, false)`](/process-functions/excel-workbook#workbook-excelworkbook-file) instead.
:::

Opens an Excel file as an [Apache POI](https://poi.apache.org/apidocs/org/apache/poi/xssf/usermodel/XSSFWorkbook.html) workbook.

```js
workbook.open(filename, password)
```

## Parameters

| Parameter | Type | Description |
|---|---|---|
| `filename` | `string` | The path of the file. |
| `password` | `string` | Optional. The workbook's password.  |

## Returns

An Apache POI workbook.

## Examples

```js
const wb = workbook.open("uploads/budget.xlsx");
```