If the user already have data on an Excel, we provide an import wizard so that they can import their Excel and create a database with it.
If the user does not have existing data from Excel, they can first define the data fields on Ragic using the design mode. They can actually create cells as fields just like they would on a spreadsheet, but a lot of users find it hard to catch on so we added the drag and drop model just recently. So both ways should work okay.
And actually we do support OpenID log in, and the ability to click on an URL in e-mail to grant access to some DB entries. I guess we have to work on making these features more obvious to users.
Thanks for the feedback!