WordPress allows its users to upload and use a variety of files with different formats. But while uploading files with format other than image files, it reflects this annoying error warning most of the times:
Sorry, this file type is not permitted for security reasons.
Below is the screen capture of the error produced in the real time when I tried uploading a *.swf file to my WordPress media library:
This is how the error occurs (in red) when uploading the file [Click image to see the bigger ve...