The Product Feed Manager extension can be installed in the same way as any other extension from qphmycoi.top.
- Download the .zip file from your qphmycoi.top account.
- Go to: WordPress Admin > Plugins > Add New to upload the file you downloaded with Choose File.
- Install Now and Activate the extension.
More information at: Installing and Managing Plugins. Once you’ve installed the plugin you can start setting up your first product feed.