A Master Player File holds information on a group of players. It is very easy to add players from a Master File into a tournament. We would strongly recommend that you use Master Player Files (as opposed to entering players directly into a tournament) if you have players who will be frequent participants in your tournaments.
You can either keep all the players on a single master file, or use several files. It's fairly easy to find players in the Master Player Window which displays the contents of a master file. You can move around by just typing the first few characters of a player's last name (if the list is sorted by name) or team name (if sorted by teams). Because of this, our preference is to use a single large file.
To create a new Master Player File, use the use the Master(Players)-New Master List... operation. Give your file a name (we use the extension PPL for master player files). To open an existing master player file, use Master(Players)-Open Master List.... Either operation will open up a Master Player Window.
See How To: Add Players to Master Files for step by step instructions on adding player information to your master file, and How To: Add Players to a Tournament to see how to copy players from your master file to a tournament. How To: Update Player's USCF Ratings describes how to automatically update ratings and expiration information from the USCF ratings database.