Write a MATLAB script

You have to create at least 3 .dat files in this problem.

A set of data files named exfile1.dat, exfile2.dat, etc. has been created by a series of experiments. It is not known exactly how many there are, but the files are numbered sequentially with integers beginning with 1. The files all store combinations of numbers and characters, and are not in the same format. Write a script that will count how many lines total are in the files. Note that you do not have to process the data in the files in any way; just count the number of lines.