If the data is stored in an ASCII text file, it doesn't matter where they came from (e.g. VC++). Just use standard ANSI C functions to read them in. For example:
FILE *myfile;
float myFloat;
if ((myfile = fopen ("mydata.txt", "r")) == NULL)
printf("Error opening file.\n");
else
{
while (fscanf (myfile, "%f", &myFloat) >0)
{
printf("%f\n", myFloat);
}
fclose(myfile);
}