> ## Documentation Index
> Fetch the complete documentation index at: https://parabola.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Cleaning data
In this lesson, you'll learn the three main types of data cleanup — columns, rows, and values — and get prompting tips to get the best results when cleaning data in Parabola.
***
Before combining your data sets, clean the delivery report so it only contains the columns you need. Copy and paste this prompt into Parabola:
```text wrap theme={null}
I want to clean my delivery report data.
Keep only the following columns: "Reference", "Delivery Date", and "Status"
Then filter to only keep rows where "Status" is "DELIVERED".
```
The steps added to your canvas and their exact documentation may differ from what you see below — every AI response is unique. The important thing is that your resulting data set matches what you see here.
