Guest Users are those users who check out from your site without creating an account. There may be instances where the details of only the guest users need to be exported. WordPress Users & WooCommerce Customers Import Export plugin gives provision to export the guest users very easily.
Once the WordPress Users and WooCommerce customers Import Export plugin is installed and activated, navigate to Woocommerce>Customer Import Export from the WordPress dashboard.
In order to export guest users only, just enable the Export Guest Users checkbox from the Export page as shown below:
To get a detailed overview of how the users are exported, go to Setting up WordPress Users and WooCommerce Customers Import-Export Plugin