#include <stdio.h>

int main(){

    FILE *nmrdata;
    float x[8192], y[8192];
    int numlines, i;

    nmrdata = fopen("testdata.dat", "r");

    if ( nmrdata != NULL ) {
        numlines = 0;
        while ( !feof(nmrdata) ) {
            fscanf(nmrdata, "%f %f", &x[numlines], &y[numlines]) ;
            numlines++;
        }
        numlines--; 

        fclose(nmrdata);
    }
    else {
        printf("-- Error Opening File --\n");
    }

    for (i=0; i<numlines; i++) {
        printf("%f %f\n", x[i], y[i]);
    }
}