# Working with the data

### In this section

* [List of functions](https://help.qlik.com/talend/en-US/data-preparation-user-guide/Cloud/list-of-functions)
* [Working on large datasets](https://help.qlik.com/talend/en-US/data-preparation-user-guide/Cloud/working-on-large-datasets)
* [Enriching data](https://help.qlik.com/talend/en-US/data-preparation-user-guide/Cloud/enriching-data)
* [Formatting data](https://help.qlik.com/talend/en-US/data-preparation-user-guide/Cloud/formatting-data)
* [Cleansing dates](https://help.qlik.com/talend/en-US/data-preparation-user-guide/Cloud/cleansing-dates)
* [Cleansing numbers](https://help.qlik.com/talend/en-US/data-preparation-user-guide/Cloud/cleansing-numbers)
* [Cleansing strings](https://help.qlik.com/talend/en-US/data-preparation-user-guide/Cloud/cleansing-strings)
* [Protecting data](https://help.qlik.com/talend/en-US/data-preparation-user-guide/Cloud/protecting-data)