> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# DEE extraction procedure value output column

> Reference for the `extractProcValueOutputColumn` output column type in a DEE order, which outputs a named value produced by an extraction procedure, including its `header`, `name`, and `format` properties.

## JSON structure

```json theme={"languages":{"custom":["/engine/python-sdk/6.2/languages/pycon.tmLanguage.json"]}}
"columns": [
  {
    "@type": "extractProcValueOutputColumn",
    "header": "head",
    "name": "measure1",
    "format": "STRING"
  },
```

## Property details

| Property | Values | Default Value |
| - | - | - |
| header | String - Header of column | |
| name | String - Measure name used in extraction procedure | |
| format | String of formatter | #0.000 |

Read more about [extraction procedures](../../../../design-and-customizations/extraction).