For your information:
daisyFileReader block from the
daisy library which can be used in labs and in your projects is currently being updated. We are porting it to veriloga rather than ahdl.
If you are eager to start using it, you could meanwhile use the
vpwlf component in
analogLib, tell it to read from a file you generate in MATLAB and then use one of the ideal ADCs (look for
daisy library to convert its output to a digital bit stream to be used by the DAC in your signal chain.