I've added a feature for creating stories and tasks during project creation to our backlog and added a vote to it.
One more question though. If we enhanced the import stories feature to allow you to also create child tasks, would that meet your needs? If you're unfamiliar with this feature, the Import Stories screen allows you to create stories from a csv file (created in excel, or elsewhere). The idea here being that you could use the excel spreadsheet you already have, convert it to csv, and then import those stories and tasks into TeamPulse after you create a project.
the Telerik team