Files of an EtlTool:
Benetl is the program that creates EtlTools for you through out a graphical interface.
An EtlTool is the extracting data from datasources and is working with several files:
In the datasource folder (containing datasource files):
EtlTool.bat (which is running Benetl core/libs from C:\Benetl)
control_file.xml (configuration file for the current EtlTool)
your_etltool_name.log (log file with the name of your EtlTool)
one or more .txt or .csv or .xls or .json datasource files