# Data Cleaning[¶](https://knowledge.dataiku.com/latest/courses/resources/excel-to-dss/data-cleaning.html#data-cleaning "Permalink to this headline")

Excel supports a number of data cleaning operations, including:

* Renaming columns

* Removing columns

* Assessing data quality

* Finding and replacing invalid values

Each of these operations, and more, are handled as individual steps in Dataiku’s Prepare recipe. The Prepare recipe’s script provides a history of the cleaning and enrichment actions taken, and allows you to quickly re-apply the data preparation when new data arrives.

See also

Prepare recipe lessons in the Visual Recipes 101 course

Data preparation in the reference documentation
