> ## 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.

# Transforming data: key concepts

> An overview of Parabola's data transformation capabilities and best practices for cleaning data at the start of your Flow.

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In this lesson, we explore the core of what makes Parabola so powerful: its data transformation capabilities.

## Pro tip: Start by cleaning your data

The best way to start your Flow is by ensuring your data is as clean as possible at the beginning. Think about doing things like:

* Removing unnecessary columns
* Removing duplicates
* Clearly naming your columns
* Filtering out unnecessary data
* Formatting dates

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