You can test a flat file schema to verify that the parsing information and structure defined for the flat file schema result in correctly parsed and processed flat file documents. To test a flat file schema, create a launch configuration for the flat file schema. The launch configuration specifies the encoding, whitespace handling, and flat file to use when testing the flat file schema. Designer uses this information to parse and process the supplied flat file using the flat file schema. Designer displays the test results in the Results view.