FYI, if you wish to alternatively download as unmanaged package: https://login.salesforce.com/packaging/installPackage.apexp?p0=04t3h000004m8ki
This is a Field Audit Trail simulator. Allows you to generate Field Audit Trail data as well as render it, visualizing it against any record of your choice. The simulator is structured just like Field Audit Trail - with the same Big Object data model and indexing.
Very easy setup. Here is how: https://salesforce.quip.com/wBuRAZF5oJmu
