#include <iostream>
    int main ()
    {
        FILE * ptr;
        long size;
        ptr = fopen ("Example.txt", "rb");
        if (ptr == NULL) 
            perror ("Error opening file");
        else
        {
            fseek (ptr, 0, SEEK_END); 
            size = ftell (ptr);
            fclose (ptr);
            printf (" %ld\n", size);
        }
        return 0;
    }