c 2b 2b excel cell blank cells

1#include <iostream>
2#include <fstream>
3#include <sstream>
4#include <vector>
5
6int main()
7{
8    std::fstream file("myfile.txt");
9    std::vector<std::string> vec;
10
11    if(file.is_open())
12    {
13        std::string line;
14        bool Skip = true;
15
16        while(std::getline(file, line))
17        {
18            std::stringstream sstr(line);
19            std::string word;
20
21            while (std::getline(sstr, word, ' '))
22            {
23                if(!word.empty())
24                    vec.emplace_back(word);
25
26                else if(word.empty() && Skip)
27                {
28                    vec.emplace_back("NaN");
29                    Skip = false;
30                }
31            }
32            Skip = true;
33        }
34        file.close();
35    }
36
37    for(size_t i = 0; i < vec.size(); ++i)
38    {
39        std::cout << vec[i] << " ";
40        if((i+1)%3 ==0) std::cout << std::endl;
41    }
42    return 0;
43}