From time to time, DNAGedcom may be able to provide files suitable for importing into GDAT. As such, there are "Generic" data source import templates for your convenience.
To use these, you will first need to create a custom source. Once you have that, then you will be able to adjust the "Select Source" field to match your custom source and as long as your fields match, you should have a working import template.
Note: Only one set of Generic templates are able to be active at any given time. If you need more than one set available, you can rename these with a name of your choice, or you can create your own custom templates.