You can upload external test data from a file on your front-end workstation directly before a test script is executed as part of the execution process. You can specify the location of the file in the test configuration and in the start options. Specifying a location in the start options overrides the settings from the test configuration.
If you specify that external variants are to be executed (by selecting External Variants), all the variants defined in the external file are executed and none of the internal variants defined in a test configuration are executed.
When you reference a test data container from an internal variant of a test configuration, the setting in the test data container determines whether the data is read from the test data container itself or from the external file specified in the test data container.