If you no longer need a special action for the file types you have specified, you can remove the handlers you have created with the Apache handlers menu
1 To access Apache Handlers, click on the icon above the words Apache Handlers on the main screen of your cPanel interface.
2 Select the handler you wish to remove from the drop box, and click on Delete.
NOTE: The following will appear (except .extension will be the file extension that was being handled):
The handler for .extension has been removed.
If files with special handlers are not opening properly, try removing their handlers and recreating them.