Is this free? Can I modify it?
Yes and yes. We’re making this available freely to you under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.
That means you can take it and do what you like with it. Delete all the records, start again, change the views, whatever. You can even make a better version and make it available to others. We just ask that you acknowledge Exalt, and don’t make any money out of it.
You can find more details under the Information tab in the Base.