How to clean up other deficiencies in the internal storage space of Huawei mobile phones?

Taking Huawei P9 mobile phone as an example, the specific methods are as follows:

First, click "File Management" on the mobile phone desktop, as shown in the figure.

Secondly, select the local space option, as shown in the figure.

Third, then open "Storage Management" to enter, as shown in the figure.

4. Click the "space cleaning" option after entering, as shown in the figure.

5. Then open the options in the red box below, as shown in the figure below.

6. Finally, check the files to be cleaned and click Delete, as shown in the figure.