To view the records formatted, you must apply the record layout file to the data file, which you do when opening the data file.
The Open Data File dialog box appears.
Because you saved the structure file with the same name as the data file, and in the same location, it is already selected in the Structure File (optional) field. (If you had saved it elsewhere or named it differently, you would need to click Browse and select it.)
The data file is opened in Shared mode, and the records are displayed using the record layouts in the structure file: