It looks like you are interested in using the parallel computing toolbox to perform the same processing on separate text files in parallel. If you have the parallel computing toolbox, then you may find that the "spmd" block will be very useful.
spmd
for i = labindex:numlabs:numTextFiles
% open text file i and perform processing
end
end
Doing this will allow you to have a fixed number of workers. However, they can evenly distribute the work across the different text files.
