I tried importing signals into a file block but got stuck due to this error while running the simulation.I selected the .mat file which i downloaded from physionet.
Simulink does not support loading the input data in file '100m.mat'. Simulink can only load two-dimensional arrays or timeseries objects. The array must consist of one-dimensional, double, noncomplex samples. To load data having a different type, complexity, or dimension, use a timeseries object. For either an array or a timeseries object, at least one sample point is necessary.