Problem opening a .hdf file

How do you open a .hdf file in MatLab? I've seen resources for .hdf5 files but not for .hdf.

I also tried to "import data" in Matlab with no success. When I open the file there is hardly any discernable information, it is mostly symbols.

Answer 1

[Walter Roberson]

Functions to read HDF4 files are described at https://www.mathworks.com/help/matlab/hdf4.html