Grc file source

Hi guys,

I want to learn that what kind of File source block in GRC can read?
For ex. can this block read the .mat files. I see that it can send
.bin files but are there any other file types.

the file source block can read any file extension, the only thing the
data has to be formatted properly,
i.e. it has to store either binary data, complex numbers, integers,
floats and so on.