"Why are the 55's popping up?"
Because you are storing all of the numeric data as character, which you then supply to FPRINTF and try to convert using format string '%g' which is not suitable for text... and so FPRINTF prints the character code:
fprintf('%g\n','7')
There is nothing random happening here, FPRINTF is is doing the best it can with the inputs you are giving it.
The simple solution is to store numeric data as numeric, not as text like you are doing:
Player(1).Name = 'Ivan Barrocio';
Player(1).Position = 'Point Guard';
Player(1).Height = 72;
Player(1).Shirt = 22;
Player(2).Name = 'Aries Vega';
Player(2).Position = 'Shooting Guard';
Player(2).Height = 69;
Player(2).Shirt = 1;
Player(3).Name = 'James Webster';
Player(3).Position = 'Small Forward';
Player(3).Height = 75;
Player(3).Shirt = 23;
Player(4).Name = 'Anthony Juarez';
Player(4).Position = 'Power Forward';
Player(4).Height = 76;
Player(4).Shirt = 24;
Player(5).Name = 'AJ Asberry';
Player(5).Position = 'Center';
Player(5).Height = 77;
Player(5).Shirt = 4;
for k = 1:numel(Player)
fprintf('%24s %24s %8g %8g\n', Player(k).Name, Player(k).Position, Player(k).Height, Player(k).Shirt)
end
