How to change the file type association of an existing file in PHPStorm

In order to change the file type association of an existing file in PHPStorm,

1 you have to go to Settings -> Editor -> File Types

2 navigate in Recognized File Types

3 select the file type that is mistakenly associated with your file (for example, Text)

4 ifind you file in Registered patterns and select it

5 click "-" (Remove) or press Alr+Delete