# Cleanup Files

This option is used to clean files that are not being used within the application.

Reporting to the "Files To Send" project folder Kalipso checks the files contained in it and suggests deleting files that are not being used in the application. That is, it checks the files in that folder and if Kalipso finds any reference to that file (or files) in the project then it does not display them. If not, lists them in the window and suggest deleting.

When you click on the option in the [Project ](/kalipso5/using/environment/menu/project.md)menu, the following window appears:

![](/files/-Mb0wg9nynDhc9kURj3X)

As you can see in the window you can access the list of files of the folder that are not found in the project. Also there is, as an example, a file with the name and extension in red. That file is in the folder but is not being used in the project.

A file is displayed for each line in the list. To start, the following icons on the right are available:

* **Select all** - Select all files in the list that you want to delete.
* **Deselect** - Deselects the selected files.
* **Delete** - Deletes a selected file in the list.

The files are marked as "Not Found" or "Partially Found". For each is defined a color (as seen in the example image above). Each color is assigned the following objective:

* **Not Found** - Kalipso found no reference to the file in the project.
* **Partially Found** - It found something with a name similar to the file in the project and it is better for the user to manually check where it is being used.<br>
* **Display used files** - Check box which, when activated, displays all files in the project's "Files To Send" folder in the list. Whether the files are used in the project or not.

{% hint style="success" %}
Despite this functionality, we advise you to have updated backup copies of the project. See more [here](/kalipso5/using/4.2.-backup.md).
{% endhint %}


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