I'm confused about how to open/access a file using Notepad++ and the cmd with MinGW compiler. I understand the file needs to be in the same scope however, I'm not sure where. I have tried placing the .txt file in my Documents folder which also holds the main.cpp file, and I have tried placing it in the bin folder of the MinGw folder. When I run the code, I get the error message. Is something wrong with my code or is the .txt file in the wrong location? 
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main() {
    ifstream inFS;
    ofstream outFS;
    string fileName;
    double fileNum;
    //fileName = "input_prac.txt";
    //cout << "Enter file name: " << endl;
    //cin >> fileName;
    cout << "Opening file..." << endl;
    inFS.open("input_prac.txt");      // Open file
    if (!inFS.is_open())
    {
        cout << "Could not open file" << endl;
        exit(1);
    }
    // Read file 
    while(!inFS.eof())
    {
        inFS >> fileNum;
        cout << fileNum << endl;
    }
    inFS.close();                // close file
    return 0;
}
