A system and method for creating and modifying test data files. The system comprises a parse map editor and a test data file editor, wherein parse maps are created and edited in the parse map editor, wherein the system parses incoming data files based on the parse maps that are created in the parse map editor, wherein each incoming data file is matched to a parse map, wherein the parsed data files are sent to the test data file editor, and wherein the test data file editor allows a user to view and edit the parsed data files. The method comprises parsing an incoming data file with a parse map, creating and/or editing the parse map in a parse map editor, and viewing and/or editing the parsed data file in a test data file editor.