Skip extension option is present in every rule. Its purpose is to eliminate extension of the filename from processing.
|File name||Extension||Base name|
|A Song.mp3||.mp3||A Song|
If skip extension options is used the rule will only be applied to the base name of the file.
Note: Extension is considered to be whatever follows the last dot in the filename. As of this moment, a dot in the name of a folder is also considered to signify an extension, hence, this option also applies to folders.