The configuration we’re looking at implementing is:

• A named day delivery service
• It’s available Next Working Day onwards
• It’s the only service being used in Shipping Calendar
• It’s not available on Sundays

The CSV file at the link below will implement this method.

Shipping Calendar Named Day Delivery CSV File

The blackout delivery day should be defined in the admin interface rather than in the CSV file. You can find the option to blackout a delivery day within your Magento admin panel by following these menus: System->Configuration->Shipping Settings->Webshopapps Date Based Shipping->Blackout Delivery Days