Noted That:

• To install correctly this flexible-product-fields.zip .
• Fisrt Download the flexible-product-fields.zip to your computer
• Extract/Open flexible-product-fields.zip to Your Computer.
• Then, Find readme.txt file inside flexible-product-fields.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 Tips Below.

Start the Tips:

1. First Download " flexible-product-fields.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 " flexible-product-fields.zip "  Downloaded plugin from your computer, Where you downloaded flexible-product-fields.zip According to Step – 1 Above then, click on " Install Now"

6. Now, Click on " Active Plugin"

7. Then, See left sidemenu. " Flexible Product Fields (Product Add-ons) for WooCommerce " folder is added on left sidemenu. Now, Click on " Flexible Product Fields (Product Add-ons) for WooCommerce " folder.

   Noted that: If you do not see " Flexible Product Fields (Product Add-ons) for WooCommerce " folder on left sidemenu then, see at left sidemenu " Settings " or " Tools ".

8. Now you configure yourself oR Watch video tutorial below about  Flexible Product Fields (Product Add-ons) for WooCommerce Configurtions and Settings or How to work " Flexible Product Fields (Product Add-ons) for WooCommerce " 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 " Flexible Product Fields (Product Add-ons) for WooCommerce " Activated Plugin from Plugin List.
4. Then, Click on " Settings " from Plugin that is Flexible Product Fields (Product Add-ons) for WooCommerce
5. Now, Edit/Add/Config the setting and Click on " Save Changes " button,

You can install this plugin like any other WordPress plugin.

1. Download and unzip the latest release zip file.
2. Upload the entire plugin directory to your /wp-content/plugins/ directory.
3. Activate the plugin through the Plugins menu in WordPress Administration.

You can also use WordPress uploader to upload plugin zip file in menu Plugins -> Add New -> Upload Plugin. Then go directly to point 3.