Noted That:

• To install correctly this wp-add-mime-types.zip.
• Fisrt Download the wp-add-mime-types.zip to your computer
• Extract/Open wp-add-mime-types.zip to Your Computer.
• Then, Find readme.txt file inside wp-add-mime-types.zip and Open readme.txt.
• Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
• Then, Follow the the Tips Below.

Start the Tips:

1. First Download "wp-add-mime-types.zip" Plugin to your Local Computer. (Click Download)

2. Then, Login to your "yourdomain.com/wp-admin" Dashboard.

3. Then, Click on "Plugins" + "Add New" from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse "wp-add-mime-types.zip" Downloaded plugin from your computer, Where you downloaded wp-add-mime-types.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "WP Add Mime Types" folder is added on left sidemenu. Now, Click on "WP Add Mime Types" folder.

   Noted that: If you do not see "WP Add Mime Types" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about WP Add Mime Types Configurtions and Settings or How to work "WP Add Mime Types" in your WordPress site.

After Activated Plugin According to Step-6 then,

1. Go to "Plugins" + "Installed Plugin" from Wordpress Admin Panel Leftside Menu.
2. or Direct go to: https://yourdomain/wp-admin/plugins.php
3. Then, Find "WP Add Mime Types" Activated Plugin from Plugin List.
4. Then, Click on "Settings" from Plugin that is WP Add Mime Types
5. Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Please install this plugin and activate it.
If you use a language except English, please update the translation data in the updates of Dashboard.

If the multisite is enabled, please check the setting menu in the network administrator.

Usage

First of all, please check the “Media Type Settings” in the “Settings”.
You can see the list of allowed mime types and file extensions by WordPress.

When you add the mime type or file extension, the data will be added to last item in this list at the red color.

About the mime type list, please see the list of mime types in the information of the Internet.
Ex. http://www.freeformatter.com/mime-types-list.html

The user who have the manage_options permission can only add the setting.

If you would like to translate it to your language, please visit the GlotPress from https://wordpress.org/plugins/wp-add-mime-types/ .

If the multisite is enabled, the multisite network administrator can add/change/delete the mime type value in the multisite network setting menu. And the multisite network administrator or the site administrator can only see the past value (cannot change) before the site was migrated to the multisite.