simulink loading matrix to be interpolated

In matlab .m code I load a 2D aerotable using the load operator. Does not work in simulink -- Using a Matlab function block with load command, load can't find the file although .m code can.

function block code is:

function Cq = CqRead Cq = load('/filepath/filename');

and I get error code : Failed to locate file '/filepath/filename' specified in the load function.

Yes, I have checked the path and name and they are good.

Loading into workspace not a solution since goal is to compile the code into C and add to a larger simulation.

Any solutions? Please?

[Orion]

It's not clear.

What kind of data is stored in your mat file ? a Matrix n by m ?

And what do you want to do with it ?

Using a Matlab function block may be not the better way to do it.