Once you have your data, the TradeMatcher application and the appropriate script file in the project folder, it's simply a matter of launching the program and clicking a single button to run the script.
Assuming all three items are in place the matching will start. If you get a message in the feedback that an item is missing, double check that you have the data and script files in the folder with the application and that they are correctly named.
The program will take a few seconds to as long as two minutes in the event of several thousand trades (plus wash filtering) to process the data and create the result files. This of course depends on the amount of trade transactions and the degree of processing that is being completed. Keep in mind that in many cases several passes are being made through the data stripping out characters, reformatting, reordering and creating intermediate files. An amazing amount of processing is taking place reducing what would otherwise manually take many many hours. We do indeed live in interesting times!
Common scripts generally have commands that delete the intermediate files at the end of the script. In the unlikely event you do experience some type of error or your result file is empty (which is a sign that the script used is incorrect and needs adjusting), removing these delete commands from your script if they are included will leave the intermediate files in the folder. By having these intermediate files with the data in various stages of reformatting, it should be easy to determine if a script might need to be adjusted to handle your individual situation.
Ultimately, when the process is completed, the TradeMatcher's feedback area will have information concerning the processes completed and should contain a message that the processes completed successfully.
At this point, a beverage with bubbles may be in order!