---
url: /process-functions/datasource-csv.md
description: Returns the specified csv file as an object.
---

# datasource.csv

Returns the specified csv file as an object. The returned object has multiple functions that are documented in [CSV Writer](/process-functions/csv-writer). A file may only have one instance of a CSV writer or CSV reader connected at a time. A new attempt at a reader or writer connection will result in an error.

```js
datasource.csv(fileName)
```

#### Parameters

* `fileName` - The name and file path of the csv file in MODLR file system to be read. File path can be found in the filesystem page.

#### Example

```js
let csv = datasource.csv("budget_review_2020.csv");
```