help whit file opening

HI i'm new to C programming and i wanted to ask where the error is in that part of code it is supposed to open a .txt file placed in the same folder and print the numbers that it contains onto the screen but i'm reciving a segmentation fault; I'm using the Xcode compiler that's embedded in an apple developers pack...

that's the code...

Code:

#include <stdio.h>
#include <stdlib.h>
int main() {
	FILE *file;
	int numbers[3000]; 
	int i,j;
	
	file = calloc(3000, 10);
	
	file = fopen("numeri.dat", "r+");
	

		printf("File opened successfully.\n");
		
		i = 0 ;    
		
		while(!feof(file)) { 
			
			fscanf(file, "%d", &numbers[i]);
			i++;
		}
		
		printf("The numbers are:\n");
		
		for(j=0 ; j<i ; j++) { 
			printf("%d\n", numbers[j]);
		}
		
		fclose(file);
     	free(file);
		return 0;
}

Cross-posted