arthurlacoste

Add more files extensions with a new field in your Medias Settings.
<a href="http://irz.fr/add-more-files-extensions/" rel="nofollow ugc">You can check the dev page</a>
You just need to insert your extensions in <code>Settings > Medias > Uploading Files</code> separate by a space (ex : ‘exe pdf rar’), and the plugin does the rest.
This plugin is in french but the translation in english is in progress.

Add more files extensions

Add more files extensions with a new field in your Medias Settings.

kimipooh

The plugin additionally allows the mime types and file extensions to WordPress. In other words, your WordPress site can upload various file extensions.

WP Add Mime Types

The plugin additionally allows the mime types and file extensions to WordPress.

Add more files extensions vs WP Add Mime Types