how to open .bin file

hello,

i am using c6713dsk with ccs v3.1.
i require a .bin file to be open so that i can use its data(content) in my program as input.

But if i use probe point method it requires only .DAT and COFF extension so unable to use as my file is in .BIN extension which contains 16bit PCM values.

I also try
ffd = fopen( "c:.....\TST.BIN", "rb");
if ( ffd == NULL)
{
printf("error");
exit();
}

But every time i run the project it returns only
error as output.
what & how to do?

so kindly help me to solve this issue.