Browse to the folder that contains the template in question.
Click on the Datasources pane. The Datasource summary appears, as shown in Figure 1:
The summary displays each documented datasource in the template, along with its name, type and an optional comment. For multirow datasources, each column may also be listed, along with an optional column comment.
Only partial information will be available for datasources which are not documented by the developer, as shown in Figure 2: