Any ideas on how to sell digital bundles with unique serial keys?

Hi guys,

I am looking to sell digital App bundles through a WP site (think "Action Games" bundle etc). To do this every customer needs to receive a list of 5+ Product Keys that will only be given to one customer. However, the product still needs to be "in stock" so others can buy the bundle.

I can create a different Excel document (or similar) with the unique codes per customer, but is there a way one of the WPMU tools, or WooCommerce etc can handle the automated delivery?

To recap:

- 1 Product listing per bundle - contains multiple unique pre-defined codes for each user
- Codes do NOT need to be validated as this happens off-site.

Really grateful for any and all help received!

Many thanks,