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

# Data Extraction Tool

After selecting the **Data Extraction Tool** template in the *Deploy* section of your Canvas and providing a name and description for your app,
you will be redirected to the newly created **Data Extraction App** page, where you will see a table prompting you to drag some files.

### Creating Runs

To start a new run, you have some options:

* Click the `Upload or drag your files` button and choose the files you want;
* Simply drag the files you want from your file explorer into the table in the page;

After this, your runs will be created with your selected files as the content of your Canvas' variable.

The table will show the result of your runs as soon as they are completed!

<Warning>
  Note that your runs' results will not be persisted, so refreshing the page **will delete** everything.
  If you need to keep the results, we recommend using the [Workstation](/en/workstation/workstation) template.
</Warning>

After your runs are completed, you can click the `Download` button on the bottom right corner to export your results as a `.csv` file!

## Downloading and Exporting

When clicking on the `Download` button of your app, you will be granted 2 options to choose the structure of the downloaded sheet:

* **Consolidate values inside a single cell**: It's better to integrate with other softwares, but it is harder to read. This will take every list in the result and represent it in a JSON format inside the cell.
* **Display list items one per line**: More readable, but the structure can be confusing if you need to pass this result to other software. This will break down every list in many lines, where each line has one element of the list.

The downloaded file will be a `.csv` file, but we also provide different separators that can be selected.

## Updating your App

If your app is not getting the results you expect, maybe you need to [edit your prompt](/en/craft/editing-prompts) or change something in your **Canvas**.

<Tip>You can go directly to the Canvas associated with your app by clicking the `…` button in the top left corner.</Tip>

Your app is associated with the **Published** version of your Canvas, so please remember to [publish your canvas](/en/craft/publishing) to see the changes in your app.