Here are tutorials for Sofmea to be found :

How to choose language ? (French or English available)
How to change working directory ?
How to generate a MLS file ?
How to measue a box or a loudspeaker ?
How to measure impulse response ?
How to compute frequency and phase response ?
How to compute waterfall diagram ?
How to measure impedance ?
How to simulate crossover ?
How to get the best crossover, closest to the ideal filter for your box ?

Try to design your own "Do It Yourself" loudspeakers